The treatment of blank wall is an important link in house decoration. Proper treatment can lay a good foundation for the subsequent decoration work, and also enable the wall to achieve the ideal decorative effect. The following is a detailed introduction to the treatment methods and related matters needing attention of the blank wall for you.

The first is grass-roots treatment. There are usually impurities such as dust, oil pollution and loose objects on the surface of the blank wall, which need to be cleaned comprehensively first. You can use brooms, vacuum cleaners and other tools to remove dust. For the parts with serious oil pollution, you can use cleaning agents to wipe them. If there are cracks, holes and other defects in the wall surface, it needs to be filled with gypsum or special repair materials. Small cracks can be directly repaired with putty, and larger cracks need to be embedded with bandages or mesh cloth before filling them to prevent cracks from cracking again.

The next step is wall leveling. Uneven wall will affect the subsequent decoration effect, so leveling is needed. Commonly used leveling materials are cement mortar and putty powder. If the deviation of wall flatness is large, coarse leveling can be carried out with cement mortar first, and fine leveling can be carried out with putty powder after drying. When daubing putty, it is generally necessary to daub it for 2-3 times, and the interval between each time should be determined according to the weather and material description, usually 1-2 days. The thickness of each application should not be too thick to avoid cracking.

Then it is sanded. After the putty is dried, it is necessary to polish the wall surface with sandpaper to make the wall surface smoother and flatter. The mesh number of sandpaper should be selected according to the flatness and grinding stage of the wall. Generally, rough sandpaper is used for preliminary grinding first, and then fine sandpaper is used for fine grinding. Pay even attention when polishing to avoid polishing marks.

Finally, the wall decoration. After the previous treatment, the wall can be decorated, such as painting latex paint and pasting wallpaper. When painting latex paint, we should pay attention to selecting products with good quality and high environmental protection performance, and make deployment and construction according to the requirements of the manual. When pasting wallpaper, pay attention to the splicing and alignment of wallpaper to avoid problems such as empty drum and edge warping.

In the process of dealing with the blank wall, there are also some matters needing attention. When treating at the grass-roots level, it is necessary to ensure that the wall is completely dry before the next step of construction, otherwise it will affect the adhesion and drying speed of subsequent materials, and even lead to problems such as moldy and falling off the wall. In the process of wall leveling, it is necessary to control the proportion and coating thickness of cement mortar and putty powder to avoid cracking and hollowing. When sanding, you should pay attention to protective measures, such as wearing masks and gloves, so as to avoid inhaling dust and causing harm to your body. In the stage of wall decoration, we should pay attention to the temperature and humidity of the construction environment, and avoid the construction in the environment of high temperature, high humidity or low temperature, so as not to affect the decoration effect.

The following is a simple comparison table for you to understand the main points of different processing stages:

Through the above methods and precautions, I believe you can handle the blank wall to achieve the ideal effect and add a beauty and comfort to your home environment.

[Disclaimer] This article only represents the author’s own views and has nothing to do with Hexun. Hexun.com is neutral about the statements and opinions in this article, and does not provide any express or implied guarantee for the accuracy, reliability or completeness of the contents. Readers are requested for reference only, and please take full responsibility. Email: news_center@staff.hexun.com.

　　CCTV News:Recently, Ms. Zhang, a consumer in Beijing, bought low-priced postage goods in two stores of an e-commerce platform. She can’t help but wonder: How do individual travelers send a courier to 10 yuan or so, and how do businesses guarantee such low-priced goods?

　　Merchants would rather lose money in marketing and attract consumers.

　　According to a reporter’s investigation, low-priced package goods are very common in major e-commerce platforms, especially "9.9 yuan package" has become a word that consumers are accustomed to. But questions like Ms. Zhang’s are common among consumers.

　　Ms. Zhang told reporters that she asked the owners of two stores afterwards. Both shopkeepers said that the low-cost package was to attract consumers and sell at a loss.

　　 Marketing at a loss, don’t businesses make money?

　　Yao Jianfang, an analyst at the E-commerce Research Center, told reporters that the fundamental reason for the existence of low-priced postal goods is that businesses are profitable. Online shop operation flow is king, and low-cost postage can be used as a good drainage method, which is lower in cost than other means of burning money. Compared with violations such as brushing a bill, it is better to post some money for promotion.

　　The reporter searched for "garbage bags" on an e-commerce platform. According to the comprehensive ranking, the turnover of garbage bags below 10 yuan and including postage was as high as 200,000 to 300,000. Of course, there are also stores with slightly higher prices and no postage.

　　Even if it is a low-cost package, not all businesses are making money at a loss.

　　Yao Jianfang explained that in order to make money by low-cost package, it is necessary to have low-cost purchase channels and control purchase costs.

　　Long-term cooperation with courier companies to keep the courier cost to a minimum. The sum of the prices of these two parts is controlled below the sales price. If the goods are sold enough and even become explosive, the profit will be considerable.

　　How does the courier company make money?

　　A courier practitioner said that for customers with large orders, they adopt a monthly settlement method, and the price is different from the usual zero order. Pricing varies from province to province. The nearest place within 3kg is generally 4 yuan, and the price of some courier companies may be lower. Some express outlets increase their business volume by collecting a lot of money, which can not only make small profits but also expand their right to speak.

　　Mr. Huang of Beijing bought a pair of scissors for 6 yuan postage online. Afterwards, he found on a wholesale website that the lowest wholesale price of this pair of scissors can be around 2 yuan. The reporter noticed that the commodity link of this pair of scissors shows that its monthly sales volume is 15,000, and the total sales volume has exceeded 100,000. Even if a pair of scissors can’t earn 1 yuan money, the total profit can be counted.

　　Have you inadvertently walked into the business routine?

　　In addition to small profits but quick turnover, low-cost postal merchants have other ways to make money. Common operations are:

　　Selling low-priced postal goods is accompanied by advertisements for other goods in the store, and making money through the sales of other goods;

　　After attracting attention and brushing traffic through low-cost postage, replace the goods with high-priced goods or raise prices step by step;

　　Set multiple specifications labels under a link, and consumers will find multiple styles and specifications when they enter the link through low-priced goods, thus improving the exposure rate of high-priced goods;

　　Even some merchants don’t tell consumers the specific content of low-priced goods in the name of "blessing bags", but consumers find that they are inferior goods after receiving the goods. (This article Source: Workers Daily)

　　Producer/Editor-in-Chief Tang Yi/Li Zhe

　　Editor/Lv Xiaopin Qin Jing

　　(Editor Xie Xianfeng)

"Long life" is everyone’s wish, although not everyone can achieve it, but even if you can’t live long, you must live a healthy and healthy life.

With the improvement of living standards and people’s attention to health preservation, more and more people doubt that they are sub-healthy, so what about their health?

Xiaobian has compiled some characteristics of a healthy body, which can be compared. If you are satisfied more, then you will be healthier.

01

The wound is repaired quickly.

If the wound heals easily, it means that the blood coagulation ability, white blood cell sterilization ability and blood vessel health are all good. If a minor wound or minor burn takes a long time to heal, or slight pressure causes unexplained skin bruising, see a doctor.

02

Stable weight

Chinese medicine believes that fat people have more qi deficiency and more phlegm and dampness; Thin people have more yin deficiency and more fire. At this time, as long as it is not too fat or too thin, there is no need to deliberately lose weight or gain weight. The weight has remained stable, indicating that the body is very healthy.

If the weight changes suddenly, it means unhealthy and needs special attention!

03

A full night’s sleep

A healthy sleep state is that you have fewer dreams, get up less at night, and sleep until dawn. This is the healthiest state of sleep.

The quality of sleep is poor. I get up several times every night. Although I sleep for a long time in MUBI at night, my brain and organs really get a rest for a very short time, which is also a sign of my unhealthy body.

04

Nails are ruddy and without edges.

Nails are directly related to the viscera and meridians of the human body, and the healthy changes of the human body can be fully reflected through nails. The health of nails is related to the nutritional status of the body, the intake of vitamins and the stability of detoxification. The ruddy nails without edges indicate that the blood is sufficient and there is no calcium deficiency, which also indicates that the endocrine is normal.

And the liver is the main rib, and the nail is a part of the tendon. The health of the nail will also reflect the health of the liver. The liver is known as the "general of the human body" and plays an important role in the health of the human body. The liver is good and everything is fine!

05

Hair moist

Chinese medicine believes that "kidney, its China is in the hair" and "hair is in addition to blood". The growth, shedding, moistening and withering of hair depend not only on the nourishment of essence in the kidney, but also on the nourishment of blood. The healthier a person is, the fuller the blood is, and the hair will naturally be moist. On the contrary, when the essence and blood are deficient, the hair tends to turn white and fall off.

06

Less meat on the stomach

The belly fat that can’t be thrown away is a headache for many people. Abdominal obesity is not a trivial matter, which not only affects the beauty of body shape, but also is a signal of pre-illness state-causing hypertension, angina pectoris, myocardial infarction, diabetes and so on.

Studies have shown that the risk of death faced by women with abdominal obesity is 20% higher than that of ordinary people. Usually pay more attention to the waist circumference, which is less than 90cm for men and 85cm； for women; Don’t eat too late for dinner, or you’ll get fat. Exercise more and control your weight.

07

pleasant personality

Cheerful personality will make the body in a pleasant state, and the function and state of the body are at the best. The enzyme activity of the body is also in a good state, so it is healthier and longer.

08

Defecation once or twice a day.

Stool obstruction is one of the important criteria to test the health of digestive and excretory systems. Always can’t solve the stool, stool accumulation, will continue to produce toxins, resulting in gastrointestinal dysfunction, endocrine disorders, mental stress and other problems.

A cup of boiled water in the morning can promote excretion, prevent constipation, dilute blood and promote blood circulation.

Original title: "Health Science | The body has these eight major conditions, which means that you have a long life and are very healthy! 》

Read the original text

The financial business has a very high "gold content" among foreign automobile companies. For example, there are only two major business segments: "manufacturing+finance", and the profits from the financial segment also exceed 20% of the total profits of the public. The financial sector made a greater contribution to GM. Before the bankruptcy of GM, the profit from financial business accounted for more than 60%.

Gu Feng was given the "task" by Chen Hong, chairman of SAIC, to increase the profit of SAIC’s financial business from about 8% at present to 15%-20%. In order to achieve the goal smoothly, SAIC Finance Department was established, and Gu Feng was appointed as the general manager. At the same time, Wu Heng, deputy general manager of the Finance Department, and more than a dozen middle and senior cadres of SAIC were appointed.

Now, with Gu Feng’s departure, whether SAIC’s huge plan in financial business can continue to be implemented remains to be further verified.

Following the departure of Zhang Hailiang, former vice-president of SAIC, and joining LeTV in March this year, the senior management team of SAIC changed again.

A few days ago, 21st century business herald reporter learned that Gu Feng, CFO of SAIC (equivalent to vice president of SAIC), has submitted his resignation report, which is currently awaiting the approval of Shanghai SASAC.

Together with Zhang Hailiang, who left in March this year, this is the second vice president-level executive of SAIC in half a year.

Like Zhang Hailiang, Gu Feng was born after 70, and his career was in the prime of his life. People who are familiar with him are very appreciative of his professional ability and personality. In addition, like Zhang Hailiang in charge of SAIC’s service and trade sector, Gu Feng is also responsible for the transformation of SAIC. In the first half of this year, SAIC has established a financial division, with Gu Feng as the general manager.

After the establishment of the financial business department, Chen Hong, chairman of SAIC, hopes that the financial business profit will now account for about 8% of SAIC’s total profit and rise to 15%-20% in the future. This is also an important symbol of SAIC’s transformation from a traditional automobile manufacturing industry to a comprehensive company that provides comprehensive services to consumers, and will directly affect SAIC’s market value promotion plan, which Gu Feng has also made before. With Gu Feng’s "departure", whether Chen Hong’s transformation plan can be smoothly promoted is also facing a test.

Salary limit must be an excuse.

Some people think that Gu Feng’s resignation was due to "salary restriction". SAIC began to implement the salary limit system in the second half of last year, and the annual salary of municipal cadres has been greatly adjusted.

Generally, the level of vice-president is deputy bureau level. According to the standard of city management cadres, the annual salary is only 600,000, and Gu Feng is one of them. There are more than 1,000 people in SAIC with an annual salary of over one million, which also means that as the vice presidents of SAIC, Gu Feng, Zhang Hailiang and others have an annual salary less than that of an engineer. Prior to this, in 2015, the annual salary of the vice presidents of SAIC Group exceeded one million.

Then compare other companies in the automobile industry horizontally. Generally, private enterprises are native to vice-president professional managers with an annual salary of at least one million, and there are not a few imported talents with an annual salary of more than two million. In 2015, President and Executive Director Gui Shengyue had the highest annual salary, reaching 8.646 million; Executive Director Hong Shaolun, with an annual salary of 7.353 million yuan; Wei Jianjun, the chairman, ranked third with a salary of 5,692,400 yuan.

Even so, a person familiar with Gu Feng told reporters: "It must be an excuse to say that Gu Feng left because of salary restrictions."

Gu Feng, born in 1972, graduated from Shanghai University of Finance and Economics with a doctorate in management and a professor-level senior accountant.

As a trained financial man, if he valued his income, he didn’t need to stay in SAIC for a long time. As a traditional manufacturing industry, the annual salary of SAIC executives is only 2 million yuan, which is really insignificant compared with the financial industry.

According to the average wage of urban employees in 2015 released by the National Bureau of Statistics in May this year, the financial industry is still the industry with the highest income, and the annual salary of financial executives is relatively common.

Gu Feng, who could have entered the hottest financial industry naturally, dedicated his career of nearly 20 years after graduation to SAIC.

Gu Feng, who joined SAIC in 1997, participated in the establishment of Shanghai General Financial System. In 2001, after being transferred to SAIC, he led and participated in SAIC’s overall restructuring and listing in three places in 2004 (Shanghai, Hong Kong and new york, but failed to be listed in the end due to various reasons). In 2016, he led SAIC’s whole vehicle business to be injected into the listed company 600104 (the first case in Shanghai and Shenzhen), and led the acquisition of SAIC in 2007. At the same time, using the capital market platform to actively explore the financing channels of SAIC, during his tenure, he raised nearly 40 billion yuan through financial products such as separate transactions and convertible bonds, private placement and medium-term notes, and finally took the lead in setting up the first 20 billion standby syndicated loan in SAIC’s history. The scope of use of syndicated loans has opened up a new direction for standby syndicated loans.

As the chief financial officer in charge of the company’s financial power, Gu Feng also devoted a lot of energy to independent brands, including how to give more support to independent brands from financial resources, how to formulate more reasonable financial processes and systems for independent brands, and how to make independent brands develop more healthily.

At the same time, SAIC has been acquiring and merging its own brands in recent years, and the financial team led by Gu Feng has been actively exploring mergers and acquisitions with the Group, making a strict risk assessment from the financial point of view, and evaluating the long-term value of the acquired fields and whether they meet the company’s future strategic needs and value-added, so as to promote SAIC’s value investment in emerging technology fields.

During his career of nearly 20 years, Gu Feng has served as the deputy manager of the finance department of Shanghai Automotive Industry (Group) Corporation, the deputy manager of the finance department of Shanghai Automotive Group Co., Ltd., the executive director of the capital operation department, the financial controller and the executive director of the capital operation department. Along the way, he is currently CFO of SAIC, general manager of Shanghai Automotive Hong Kong Investment Co., Ltd., general manager of Shanghai Automotive Group Investment Management Co., Ltd. and general manager of SAIC Finance Division.

Elephant turns to PK new platform and goes into battle lightly.

Where to go after SAIC left? Gu Feng himself has not yet announced it. "I want to have a rest first." Gu Feng said.

People who are familiar with Gu Feng speculate that he should enter a new automobile enterprise or a transformation franchise company to engage in his financial "old line".

"With its personal ability and strength, it is possible to make a leap on a new platform and a new starting point." People familiar with Gu Feng think.

In fact, this time coincides with the transformation of SAIC. Under the leadership of Chen Hong, SAIC is actively seeking transformation. Chen Hong integrated SAIC’s business into four sectors: vehicle, parts, automobile service trade and finance.

However, after all, the elephant turns around. For a behemoth like SAIC, any small change means that it may cost a lot. This is also the reason why many large international companies prefer to be conservative rather than innovative.

For SAIC executives, in the traditional manufacturing industry, they will also encounter the ceiling of career development. For example, for Gu Feng, there is almost no room for CFO to move up, unless he leaves SAIC and enters government departments. For example, Ding Lei, the former vice president of SAIC, left the top official of SAIC to be the deputy head of Pudong New Area, but eventually jumped out of the "circle" and joined LeTV with Zhang Hailiang.

On the contrary, the outside world is wonderful. For example, Zhang Hailiang and Ding Lei, who have left SAIC, have successively joined LeTV and become their executives responsible for global business and China business; For Gu Feng, after jumping out of SAIC, it has a wider range of choices. Like Ding Lei, Zhang Hailiang, it can join a new automobile company and enter the financial industry. The financial industry is mostly international, and for Gu Feng, it has more opportunities to display its talents.

Chen Hong’s transformation business faces challenges.

However, Gu Feng’s departure can only be described as "pity" for SAIC.

SAIC is at the critical stage of improving market value management. After taking over from Hu Maoyuan as the chairman of SAIC in August 2014, Chen Hong was questioned by investors at several shareholders’ meetings of SAIC: SAIC’s financial situation is very healthy, and it was called the "most valuable investment" target of A shares by investors, but SAIC’s share price is not high.

Improving market value management has also been written into Chen Hong’s work agenda. In August last year, Chen Hong revealed that SAIC has added the company’s market value management function and investor relations maintenance work in the office of the board of directors.

At the same time, SAIC has implemented SAIC’s transformation strategy through a series of innovative business expansion. According to Chen Hong’s plan, SAIC will accelerate from a traditional enterprise mainly relying on manufacturing to a comprehensive supplier providing consumers with all-round products and services, and strive to become a world-famous automobile company with global layout, transnational operation, international competitiveness and brand influence.

The "task" given by Chen Hong to Gu Feng is to increase the profit of SAIC’s financial business from the current 8% to 15%-20%. In order to achieve the goal smoothly, SAIC Finance Department was established, and Gu Feng was appointed as the general manager. At the same time, Wu Heng, deputy general manager of the Finance Department, and more than a dozen middle and senior cadres of SAIC were appointed.

The financial business has a very high "gold content" among foreign automobile companies. For example, Volkswagen’s business sector has only two large pieces of "manufacturing+finance", and the profit from the financial sector also exceeds 20% of the total profit of Volkswagen. The financial sector made a greater contribution to GM. Before the bankruptcy of GM, the profit from financial business accounted for more than 60%.

After the establishment of the Finance Division, Gu Feng once revealed ambitiously that the future SAIC Finance Division mainly involves four major functions. First, SAIC will integrate and re-plan the businesses of SAIC Finance Company, SAIC General Finance Company, SAIC Equity Investment and Insurance Company under the Finance Division, with the purpose of linking the financial business with SAIC’s industry, so that the financial business can serve the industry, such as launching the business of car owners’ wealth management and car owners’ balance treasure. Even, the financial department may expand SAIC’s financial business by acquiring banks or insurance companies.

Second, after the establishment of the Financial Division, the financial business of SAIC will be centrally managed. Formulate KPI performance appraisal indicators suitable for financial business. Thirdly, SAIC Finance Division will also have the function of investment bank, and make mergers and acquisitions or acquire technologies through the leverage effect of financial business, so as to enlarge and strengthen the business sector. The fourth is to further enhance SAIC’s asset allocation capability.

Now, with Gu Feng’s departure, whether SAIC’s huge plan in financial business can continue to be implemented remains to be further verified.

　WeChat official account News of CBN WeChat, the critical moment of COVID-19 epidemic prevention and control, a paper published in the New England Journal of Medicine, pushed the China Center for Disease Control and Prevention (hereinafter referred to as "China CDC") to the forefront.

The reason is that, according to this paper, research shows that interpersonal communication has occurred between close contacts since mid-December 2019. In addition, from January 1 to January 11, a total of 7 medical staff were infected. But at this time, the public knew nothing about it.

Should scientists publish papers first or prevent them first? The focus of controversy comes from this. On the morning of January 31st, CBN reporter interviewed Gao Fu, a member of the National Health Commission high-level expert group and director of China CDC. He is the co-author of the above paper.

"This is a retrospective analysis! In mid-December, I still don’t know what the disease is, and the pathogen is unclear. It is the inference of investigating more than 400 cases of epidemiology! Onset’s days are all speculation, which everyone didn’t understand! Mix epidemiological investigation with clinical diagnosis. " Gao Fu told CBN.

Gao Fu also said that retrospective investigation is one of the responsibilities of CDC, to find the culprit, retrospective investigation, and guide future prevention and control. "Our prevention and control has never stopped, and everyone has not slept for a month."

This is a retrospective analysis.

This paper, published on January 29th, US time, was led by China CDC, including professionals from Hubei CDC and Hong Kong University. Correspondents of the study include Feng Zijian, deputy director of China CDC, and Yang Bo, director of Hubei CDC. Co-authors also include Gao Fu.

In this paper, the investigation team analyzed the reported 425 laboratory-confirmed cases as of January 22, 2020. Analysis shows that among the first 425 confirmed patients, the median age is 59 years old and the male is 56%. Most cases (55%) occurred before January 1, 2020 were related to the seafood wholesale market in South China, and the subsequent cases were 8.6%. The average incubation period was 5.2 days, and the 95th percentile of the distribution was 12.5 days. In the early stage, the scale of epidemic cases doubled every 7.4 days, the average continuous interval of infection was 7.5 days, and the number of basic infections (R0) was estimated to be 2.2.

According to this information, the paper said that there is evidence that interpersonal communication has occurred between close contacts since mid-December 2019.

This paper reveals more information about the epidemic situation in COVID-19, which has aroused widespread doubts.

On January 31st, China CDC published an article entitled "Notes of China Center for Disease Control and Prevention on Publishing Articles in the New England Journal of Medicine". The article stated that the paper was based on a retrospective analysis of 425 confirmed cases (including 15 medical staff) reported as of January 23rd, 2020, and all cases were published to the public before the paper was written. The 15 cases of medical staff infection mentioned in the paper were announced to the public by Academician Zhong Nanshan, the leader of the high-level expert group in National Health Commission, on the evening of January 20th and the Wuhan Health and Health Commission in the early morning of January 21st.

The viewpoint that "interpersonal communication occurred among close contacts in December 2019" put forward in this paper is a retrospective inference based on the epidemiological investigation data of 425 cases.

The article also said that publishing the survey results in academic journals in time will help professional colleagues at home and abroad to understand the characteristics of the disease in time, jointly evaluate and judge the epidemic situation, and improve the prevention and control strategies.

However, this article did not respond, when did China CDC come to the judgment that "interpersonal communication occurred among close contacts in December 2019".

For infectious epidemiology, retrospective study is indeed extremely important. Without retrospective study, it is impossible to understand the incidence of infectious diseases more clearly and then formulate prevention and control strategies for infectious diseases. Therefore, after the outbreak of an infectious disease and case diagnosis, epidemiological investigators will appear first.

An expert in epidemic virology also told reporters that retrospective research is the basic work of infectious diseases and must be carried out according to existing cases. Without cases, no one can observe what the development path of this virus is.

"In fact, the data of 425 cases is not enough to show the characteristics of the new virus. It can only explain the situation in the past and (425 cases) at that time. How to develop in the future needs to continue to be observed." The above-mentioned experts in epidemic virology said.

For example, China CDC stated that these cases were previously confirmed cases, and the research team used these public data to start a retrospective analysis.

How to carry out retrospective analysis?

According to this paper, the earliest cases in COVID-19 were identified through the surveillance mechanism of pneumonia with unknown etiology.

In order to identify pneumonia cases and strive to improve the sensitivity of early detection, the research team developed a tailor-made monitoring program to identify potential cases on January 3, 2020.

The initial working case definition for suspicious COVID-19 is based on the case definition of SARS and Middle East Respiratory Syndrome (MERS). After obtaining new information about confirmed cases, the epidemiological criteria for defining suspicious cases were updated on January 18, 2020.

Once suspicious cases are found, a joint team composed of China CDC, provincial CDC, local CDC and county CDC will be notified to carry out detailed on-site investigation and collect respiratory tract samples, which will be tested in the Center for Viral Disease Prevention and Control of China CDC.

A joint team composed of staff from China CDC and local CDC also conducted detailed field investigations on all suspected and confirmed cases. They collected epidemiological data through interviews with infected people, relatives, close contacts and medical staff, so as to determine the contact history of patients two weeks before onset, including the date, frequency, frequency and mode of contact with wild animals, especially the wild animals available in the South China Seafood Market in Wuhan. In addition, the researchers also collected information about exposure to any relevant environment and contact with others with similar symptoms.

All the epidemiological information collected in the survey, including contact history, timetable and the identity of close contacts, were cross-checked.

Through this path, the research team obtained the epidemiological information of 425 cases.

The basic infection number is about 2.2.

The importance of retrospective analysis of infectious diseases lies in seeing clearly the laws of infectious diseases, and only by seeing clearly the enemy can we make better prevention and control.

In addition to the above-mentioned questioned contents, what other noteworthy information does this paper reveal?

In this paper, the researchers estimate the growth rate of the epidemic by analyzing the data of cases between December 10, 2019 and January 4, 2020.

According to the paper, limited to the data before January 4th, it is estimated that the basic number of infections in COVID-19 is about 2.2, which means that each patient spreads the infection to 2.2 other people on average. As far as COVID-19 is concerned, the paper said that the control challenges include the obvious existence of many mild infections and the limited resources to isolate cases and close contacts.

However, due to the increased awareness of the epidemic situation and the increased availability and utilization rate of inspections in recent weeks, the confirmed infection rate will increase.

A chart used in this article shows that after January 11th, the number of cases decreased. However, the paper also said that it is probably due to the uncertainty of recent cases and the delay in identification and reporting, rather than the real turning point of incidence.

Considering that the availability and usage of test kits will increase with the passage of time, the paper said that extra care should be taken in explaining the growth rate of cases in January.

In short, the research results also show that in the early stage, the case size doubled every 7.4 days. The average continuous interval is 7.5 days.

The paper also reminds that the urgent next step includes determining the most effective control measures to reduce the spread within the community. With a better understanding of epidemiological characteristics and the dynamic mechanism of cases, it is also necessary to improve the definition of work cases. At the same time, it is also necessary to continue to monitor cases to find any changes in epidemiology, such as infections among young people or medical workers.

Original title: Gao Fu responded to the paper’s query: everyone didn’t understand, confusing the paper with clinical diagnosis.

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　　China Institute of Science and Technology Information released a statistical report on China’s scientific papers today. According to the report, the number of papers in the most influential journals in various disciplines in China ranks first in the world for the first time, and the number of papers in high-level international journals and the number of citations rank first in the world.

　　Journals with the highest impact factors in all disciplines can be regarded as the most influential journals in all disciplines in the world. In 2022, there were 159 high-impact journals in 178 disciplines, and the total number of papers in the most influential journals in various disciplines in 2022 was 54,002. The number of papers published in these journals in China is 16,349, accounting for 30.3% of the world’s total, surpassing the United States to rank first in the world for the first time.

　　Journals with the influence factors and total cited times of each discipline living in the top 10% of the discipline, and with more than 50 academic papers and review articles published each year, are selected as representative scientific journals of various disciplines in the world, and the papers published on them belong to high-level international journals. In 2022, a total of 371 international sci-tech journals were selected as representative sci-tech journals of various disciplines in the world, and 348,600 high-level international journal papers were published. According to the statistical analysis of the first author and the first unit, China has published 93,600 high-level international journal papers, accounting for 26.9% of the world total, and the number of citations is 649,600, ranking first in the world in both the number of papers published and the number of citations.

　　In 2022, there were 16 international journals that were cited more than 100,000 times and had an impact factor of more than 30. In 2022, 28,400 papers were published, among which China published 1,140 academic papers and review articles, ranking second in the world, which was the same as in 2021.

　　(CCTV reporter Zhang Chunling Cao Yuzheng)

In less than a year, the "fastest US stock market listing" automobile brand is planning to withdraw from the NYSE and return to Geely. The news shook the whole circle.

On May 7th, Geely Automobile Holdings Co., Ltd. (hereinafter referred to as "Geely Automobile") announced its plan to acquire all the issued shares of Extreme Krypton Intelligent Technology Co., Ltd. (hereinafter referred to as "Extreme Krypton"). Geely Automobile currently holds about 65.7% of the shares of Krypton. If the transaction is completed, Geely Automobile and Krypton will be completely merged, and Krypton will be privatized and delisted on the New York Stock Exchange. As of the close of May 8, Beijing time, the share price of Krypton was $52.19, up by 11.51%, with a total market value of 6.403 billion yuan.

Since the listing of Krypton brand in the US stock market in 2024, the sales growth has been weak due to problems such as "left-handed and right-handed fighting", and the annual target has made slow progress. Li Shufu, chairman of Geely Holding Group, stressed on May 7 that it is necessary to "continuously promote the integration of automobile business and return to a Geely".

"Economic Account" and "Breakthrough War" or the logic behind the reorganization of Geely Group.

Screenshot of Geely Automobile Announcement.

Less than a year after listing, the annual target of Krypton is progressing slowly.

It has been less than a year since the listing of U.S. stocks.

Born on April 15, 2021, Krypton announced its plan to go public in October 2022. On May 10th, 2024, Krypton was officially listed on the New York Stock Exchange, raising about US$ 441 million (about RMB 3.18 billion), making it the "fastest US stock listing" brand of new energy vehicles.

It is worth mentioning that in the A round of financing in February 2023, the valuation of Krypton was as high as 13 billion US dollars. However, before the official listing, the valuation of Krypton issuance was about 5.13 billion US dollars, which was reduced by half.

According to Krypton’s plan, we should strive to turn losses into profits in 2024. The 2024 financial report released in March this year showed that the company’s total revenue in 2024 was 75.91 billion yuan, a year-on-year increase of 47%; The annual net loss was 5.79 billion yuan, a year-on-year decrease of 30%. From 2021 to 2023, the net loss of Krypton was 4.514 billion yuan, 7.655 billion yuan and 8.264 billion yuan respectively.

Li Shufu mentioned on May 7 that "in the face of fierce market competition and increasingly complex economic environment, we will assess the situation".

On May 8, Geely Group responded to the Beijing News Shell Finance reporter, saying that the reason for Geely’s acquisition of Krypton is subject to the announcement issued by the Group.

In the announcement, Geely Automobile mentioned that this move "aims to promote the deep integration and efficient coordination of internal resources, eliminate repeated investment, reduce costs, enhance the competitiveness of enterprises and create long-term value."

It can’t be ignored that the sales volume of the brand is under pressure this year. According to the latest sales data of Extreme Krypton Technology Group, the sales volume of Extreme Krypton brand in April was 13,727 units, down nearly 15% year-on-year and 11% quarter-on-quarter.

The sales target for 2025 previously announced by the Extreme Krypton brand is 320,000 vehicles. In the first four months of this year, the cumulative sales volume of the Extreme Krypton Group was 55,000 vehicles. The time schedule has passed one third, but the sales progress is only 17.2%.

"Divide the troops and fight" has left and right hands fighting each other.

Behind the pressure of krypton sales, in addition to the great competitive pressure, the internal "dividing troops" is also the problem.

Krypton 001 is the flagship model of Krypton brand. In February, 2024, the 2024 Extreme Krypton 001 went on the market. In the first month, it was set to exceed 30,000 vehicles, and the monthly sales in June reached 14,000 vehicles, a record high. But then sales declined, and the myth of "selling one car in one minute" came to an abrupt end.

However, the competition from competing models has become increasingly fierce: the first model of Xiaomi Automobile, SU7, was launched in March 2024; The 2024 Zhijie S7 was released in April 2024; Tesla 3 high-performance version was officially sold from June 2024.

Therefore, in August 2024, the 2025 Kykrypton 001 was quickly listed, and the Mobileye chip used in 2024 was replaced by NVIDIA dual OrinX chip, which improved the computing power and the starting price was 259,000 yuan. However, some car owners have publicly pointed out that "the annual model is launched in half a year" and "the model of three years can be bought in the same year" leads to the rapid depreciation of the vehicle.

On September 20, 2024, the SUV model was launched with a starting price of 229,900 yuan. For a time, the voice of "Extreme Krypton 001 or Extreme Krypton 7X is more cost-effective" emerges endlessly, and both sides are regarded as competitors, and their left and right hands are fighting each other.

In the context of declining sales, recently, Extreme Krypton Technology Group announced internally that Lin Jie, vice president of the group and general manager of Linke Sales Company, was in charge of the overall work of domestic marketing service of Extreme Krypton brand. It is understood that Lin Jie has been the general manager of Link Sales Company since 2018, and became the vice president of Extreme Technology Group in February 2025.

Geely Reorganizes "Fighting Ecology"

In fact, since 2024, Geely Group has reorganized its business segments several times.

In October, 2024, Geometry brand was officially merged into Geely Galaxy. On February 14, 2025, the brand of Extreme Krypton and Link merged rapidly in just three months, and the Extreme Krypton Technology Group was announced.

An Conghui, president of Geely Holding Group and CEO of Extreme Krypton Technology Group, described the plan of integrating Extreme Krypton and Linke in an exclusive interview with the Beijing News Shell Finance reporter: Extreme Krypton Technology Group strives to build a world-leading high-end luxury new energy automobile group with annual production and sales of one million levels through two years’ efforts.

In March 2025, Yizhen brand was officially merged into Geely Galaxy. In addition, there are rumors that Geely Group wants to include Ruilan Automobile. However, on April 10th, Qianli Technology, the controlling shareholder of Ruilan Automobile, responded to an investor’s question and said that there is no plan to transfer the equity to Geely Automobile at present.

Wang Peng, an associate researcher at the Beijing Academy of Social Sciences, told the Shell Finance reporter of the Beijing News that car companies are all changing from "fighting for products" to "fighting for ecology". Behind the repeated restructuring of Geely Group, "economic account" and "breakthrough war" are two key words.

In terms of "economic account", Extreme Krypton Technology Group publicly stated that after the merger of Extreme Krypton and Lectra, the new group company expects to save 10%-20% in R&D investment, and the R&D expense ratio is expected to drop from 11% to 6%. At the same time, with the support of large manufacturing system, the cost of bill of materials is saved by 5%-8% and the manufacturing is saved by 3%-5%. Among them, the management fee will be saved by 10%-20%, and the management fee rate is expected to be reduced from 11% to 8%.

In fact, on September 1, 2024, Geely mentioned in the Taizhou Declaration that conflicts of interest and repeated investment should be reduced. The reason why Geely Automobile mentioned the acquisition of Krypton also means to eliminate repeated investment and reduce costs.

"Breakthrough War" refers toConcentrate on doing great things and form an ecological circle. Wang Peng pointed out that in the early years, Geely comprehensively covered different markets through many brands such as Krypton, Link and Geometry, but this model led to internal consumption of resources and prone to homogenization competition.

In response to this adjustment, Li Shufu voiced on May 7th that he should continue to promote the integration of automobile business, return to a Geely, integrate technological advantages, improve innovation ability and profitability, continue to create long-term value, and build the world’s leading intelligent electric vehicle group. At the same time, it will maintain close communication and cooperation with American and international capital markets.

According to the latest statement of Geely Automobile, Geely Group will create a unified listing platform, and fully integrate extremely krypton assets and resources, thus enhancing the competitiveness of the passenger car business of the Group.

Geely’s integration drama will continue.

Beijing News Shell Financial Reporter Lin Zi

Editor Yang Juanjuan

Proofread Lin Zhao

　　During the Dragon Boat Festival, Zongzi will become an indispensable food in the holiday diet, so what should be paid attention to in the purchase, cooking, storage and eating of Zongzi? The original china food and drug administration website recently released the consumption tips about Zongzi during the Dragon Boat Festival.

　　Damaged zongzi can easily cause bacterial invasion.

　　First of all, consumers should buy zongzi from formal channels. Secondly, when selecting, the vacuum-packed dumplings, plastic bags or aluminum foil bags should be in good condition, and there should be no damage, air leakage or bag expansion. The sharp corners of zongzi are easy to pierce the soft packaging material, and once it is damaged, it is easy to cause bacteria to invade and cause zongzi to deteriorate. Attention should also be paid to whether the outer packaging of zongzi has clearly printed factory name, address, production date and shelf life. Especially fresh zongzi, because of its short shelf life, we should try our best to choose products with close factory time.

　　Don’t pursue the color of zongzi leaves excessively, and the miscellaneous bean zongzi should be cooked thoroughly.

　　It is normal that the green leaves of rice dumplings will fade and turn yellow after high-temperature cooking. Consumers should not pursue the color of zongzi leaves too much when buying zongzi. The leaves of zongzi are too bright green, which is not true and natural. In general, dark green, yellow green and light yellow are normal. The leaves of fresh zongzi and quick-frozen zongzi should be wrapped well, the brown body should be complete in shape, without rice exposure and deformation, and the binding of zongzi lines should be moderately tight.

　　Many zongzi containing miscellaneous grains or beans need a long cooking time to be cooked thoroughly. Cold zongzi should not be eaten directly because of starch retrogradation, fat solidification and other reasons, otherwise it will affect the taste and flavor of zongzi. In particular, meat dumplings are high in oil, so they should be cooked thoroughly before eating. Cooking time can refer to the instructions on the product packaging.

　　Zongzi should not be stuffy in airtight plastic bags at room temperature.

　　Zongzi can be divided into fresh zongzi, quick-frozen zongzi and vacuum-packed zongzi (normal temperature zongzi), and different storage methods should be adopted for different categories. Fresh zongzi should be bought in small quantities at a time and eaten immediately, and the remaining zongzi should be refrigerated or frozen in time.

　　Dragon Boat Festival, the weather is hot, and the humidity is higher in the south. Zongzi is rich in nutrition and high in water, which is easy to rancidity, and pathogenic bacteria such as mold are easy to grow and reproduce. Can not be stuffy in airtight plastic bags at room temperature, if it can be eaten within 2-3 days, it can be placed in the refrigerator for refrigeration; If it is to be stored for many days, it should be stored in a freezer.

　　Vacuum-packed zongzi should also be refrigerated or frozen in time after being opened. Zongzi at room temperature can be stored directly in the shade indoors or in the refrigerator freezer. It is not recommended to store it in the refrigerator freezer to prevent the packaging bag from freezing. If it is homemade zongzi, pay attention to eating it with the bag, and the fragrance of zongzi will be more intense.

　　Special people such as diabetics should control their food consumption.

　　Zongzi is mostly a high-sugar (high-starch) and high-energy food. When eating, it is best to mix it with some vegetables, soups, etc., which not only balances nutrition, but also helps digestion. For patients with diabetes, three high, hepatobiliary and other diseases, we must control the consumption. Even normal people should not eat too much at a time, so as not to cause excessive gastrointestinal burden and indigestion.

　　Text/Wei Shiping

　　Beijing, Nov. 26 (Reporter Li Jinlei) The old man was refused to show his health code when he entered the station, the 94-year-old man was lifted up in the bank for face recognition, and the old man could not use his mobile phone to pay for medical insurance … … Recently, many incidents of "old people being abandoned by high technology" have aroused great concern.

　　At the the State Council policy briefing held on November 26th, the National Development and Reform Commission, the central bank and other departments responded. How to solve the problem of "digital divide" faced by the elderly? What are the practical measures? Let’s watch together.

　　Data Map: People are visiting the content of social security in the exhibition hall. Zhongxin. com reporter Li Jinlei

　　"The traditional way should be preserved."

　　At present, the elderly population in China has exceeded 250 million. With the rapid growth of the elderly population, many elderly people can’t surf the Internet and use smart phones, so they encounter inconvenience in daily travel, medical treatment, consumption and other scenes, and can’t fully enjoy the convenience brought by intelligent services.

　　On November 25, the state shot! The General Office of the State Council issued the Implementation Plan on Effectively Solving the Difficulties of the Elderly in Using Intelligent Technology.

　　Zhao Chenxin, Secretary-General of the National Development and Reform Commission, said at the policy briefing in the State Council that the core of this "Implementation Plan" can be summarized in one sentence: while using intelligent technology, "the traditional way should be preserved". The first category is to keep traditional paper vouchers, the second category is to set up service channels for the elderly, and the third category is to keep manual services.

　　Zhao Chenxin revealed that he is working with relevant departments to study supporting implementation plans in various fields in accordance with the requirements of the Implementation Plan, and strive to introduce a number of effective measures to solve the most urgent problems of the elderly using smart technology as soon as possible before the end of the year.

　　Data map: The staff helps the elderly to register. Photo by Tianqi Luo

　　Never let an elderly person fail to see the disease because of intelligent technology.

　　Nowadays, many hospitals use intelligent technology to provide patients with services such as registration, payment and printing inspection results, which greatly facilitates the majority of patients to see a doctor, but at the same time, it also brings a lot of troubles and difficulties to some elderly patients who do not use or cannot use intelligent technology.

　　"We must not let an elderly person fail to get a job because of the application of intelligent technology, and we must fully protect their legitimate rights and interests." Wang Haidong, director of the Department of Aging Health of the National Health and Wellness Commission, said.

　　Wang Haidong said: First, while using intelligent technology, medical and health institutions are required to retain traditional service methods.

　　The second is to unblock the channel for family members, relatives and friends or family doctors to register for elderly patients. We must keep this channel and unblock this channel.

　　The third is to keep the manual service window. On-site registration, payment, printing inspection results and other services, we must keep the manual service window, which is a familiar service method for the elderly. At the same time, there should be doctors, volunteers, social workers and other on-site services for the elderly.

　　The fourth is to further simplify intelligent technologies such as online appointment registration and online consultation, so as to meet the needs of the elderly.

　　The picture shows the "passenger-only channel without code". Photo by Jing Jingjing

　　You can’t use the health code as the only proof of travel.

　　At present, under the epidemic situation in COVID-19, many elderly people are puzzled by the necessary "health codes" in and out of various buildings and halls.

　　"You can’t use the health code as the only proof of travel. You should adopt a combination of online and offline methods to facilitate people’s travel." Wang Haidong said.

　　Wang Haidong pointed out that the first is integration. Many friends report that there are still some inconveniences in automatically integrating the relevant information into the health code, such as letting yourself fill in the information. Through technical means, it is possible to coordinate relevant departments, so that computers can spend more time and the elderly can save more time.

　　The second is mutual recognition. The third is to retain other ways to replace inspection. For example, elderly people who don’t use smart phones will be replaced by valid identity documents or paper certificates. The fourth is to open a channel without health code. The fifth is to integrate the health code with various bus cards, citizen cards, old-age cards, etc. through technical means, so as to make other alternative ways can also be used as a voucher for travel.

　　Data map. China News Service reporter Zhang Yunshe

　　Comprehensively carry out centralized rectification of refusing cash.

　　Behind the incident of "the elderly refused to pay for medical insurance in the rain" is the reality that many elderly people do not use mobile phones to pay and are used to using cash, and some places refuse to accept cash, which makes the elderly helpless.

　　In this regard, Li Wei, director of the Science and Technology Department of the People’s Bank of China, said that under the unified deployment of the State Council, the centralized rectification of cash refusal and the construction of a long-term mechanism will be carried out in an all-round way.

　　Li Wei pointed out that it will work with relevant ministries, local governments, banking financial institutions and grass-roots communities to guide and standardize the cash use in the fields of water, electricity and gas, public utility payment, and high-frequency service places such as retail, restaurants, shopping malls and parks. At the same time, strengthen daily supervision. Through unannounced visits, inspections and other means to carry out a thorough investigation, establish a list of illegal subjects, focus on tracking, and severely punish some cash-refusing subjects who are highly concerned about public services, people’s livelihood and the public and have a large scope of influence.

　　In view of the problem that some smart financial services and products mainly target young and middle-aged customers and cause difficulties for the elderly, the central bank will guide financial institutions, focus on the daily high-frequency financial scenes of the elderly, and create "suitable" financial services that integrate online and offline and meet the needs of the elderly. For the elderly with mobility difficulties, relevant financial institutions will also be organized to improve their services, use some mobile devices to extend their service tentacles, and take the initiative to go to the door or handle financial services remotely.

　　The country has made a move, hoping that the elderly will not be abandoned by high technology! (End)

　　Fuzhou News Network July 19 (Fuzhou Daily reporter Mo Siyu Jun Wu) The renovation project of Red Star in Taijiang District and its surrounding old houses ushered in new progress. The reporter learned from Taijiang District on the 19th that at present, more than 3,000 residential houses involved in the project have been completely relocated and demolished, with a total construction area of more than 960,000 square meters, and the collection has entered the final stage.

　　The renovation project of Hongxing and its surrounding old housing areas is the largest old housing area renovation project within the Second Ring Road of our city at present. The total number of households involved in relocation is 7858, and the total area of houses to be expropriated is about 1.003 million square meters. The expropriation was officially started on September 18, 2017.

　　"Finally wait until this day!" Guo Dajie, who originally lived in Hongxing New Village, expressed the voices of many relocated households. Although the plot is located in the central city, it is a mixture of private houses, old prefabricated new villages, industrial warehouses, unit dormitories, etc. The housing density is high and the population is dense, and the public supporting facilities are obviously lagging behind. The voice of the masses for old reform is very strong.

　　Chen Jinhuo’s family of 11 people in Paiwei Community is crowded into an old house of 109 square meters, and Liu Ruihua’s family in Yangzhongli is always on tenterhooks every typhoon day … In the renovation project of old houses in Hongxing and surrounding areas, there are not a few families like them who live in high density and look forward to improving housing conditions.

　　7858 households, such a heavy collection work, how to implement it scientifically and efficiently? The "five in one" harmonious expropriation of "scientific expropriation, joint expropriation, efficient expropriation, sunny expropriation and tender expropriation" is the answer given by Taijiang District.

　　Zhu Teng, deputy head of Taijiang District, told the reporter that the plot was divided into four areas, A, B, C and D, each of which was covered by four teams in the district. Nearly 500 cadres and workers from 10 streets in the whole district have formed more than 20 working groups, all of which have been pressed to the front line, and have gone deep into households and units under their jurisdiction to carry out publicity and mobilization, forming a strong joint force to promote the work.

　　Whether it is the 89-year-old elderly who are hospitalized in Minhou or the property owner who is serving a sentence in Wuyishan, as long as the people need it, the collection staff always overcomes all difficulties to provide them with on-site services. "We hope that through on-site service, those people who have difficulties can understand the policy, dispel their doubts and truly trust us, thus promoting the development of land requisition and relocation." Zhu Teng said.

　　It is precisely under the promotion of the "five in one" collection that up to now, 7,852 households have been relocated in the renovation project of Hongxing and its surrounding old housing areas, with a total of 28,767 people relocated. The houses of the households involved have been completely relocated and demolished, and only the production of the remaining six provincial and municipal units is still being coordinated.

　　According to reports, the renovation project of Hongxing and its surrounding old housing areas involves 321.15 mu of administrative office land, educational and scientific research land, social welfare land, water system land and urban road land, which can be used to build 443.85 mu of resettlement housing land. According to the latest planning of the Municipal Planning Bureau, more than 700,000 square meters of resettlement houses can be built.

　　"The renovation and post-development of the old housing area can not only improve the living conditions of the people in the region, but also further develop the high-end commercial industry and create a new commercial center and emerging urban complex in Taijiang." Zhu Teng said.

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