The walls covered with championship flags, the sandy land over 60°C … The summer training venues of Shanghai volleyball players are different.

Xia Xun hits the eighth issue directly
Corpuscles come
Oriental land sports training base
Show you around.
Summer Training of Athletes in Volleyball Center
01
Men’s Volleyball-All-China Class Playing League is a special summer training.
At the end of August, in the volleyball training hall of oriental land Sports Training Base, the loud shouts made the young faces look determined. The wall behind them is the most precious aspect in the history of Chinese men’s volleyball league. Fifteen men’s volleyball league champion flags are hung on it.
In September this year, Shanghai golden times Men’s Volleyball Team completed the continuation of its legend-winning six consecutive championships and winning the 16th league title. And the championship journey has special significance. "The league lineup has been adjusted. Everyone is an all-China class competition. " Chen Yufeng, director of the volleyball sports center, introduced. For local players, especially young players, they have more stage to show the results of summer training and preparation. This kind of competition experience is of great benefit to their subsequent development, whether they join the national team or participate in the National Games.
When the main team went out to compete for the championship, Chen Haofeng was very satisfied with the results of more than two months of summer training by the reserve echelon. He said: "(Small players) have development potential both in technology and height. It is still reassuring. " 02
Women’s Volleyball Team-Looking for Opponents and Training by Competition
Compared with men’s volleyball, women’s volleyball girls’ training is more diverse. Volleyball is a collective event, and fast and changeable cooperation is a consistent feature of Shanghai. Training is not only a simple physical exercise, but also a skill transfer for the old players. "In volleyball, there is less confrontation, but experience is more important." Chen Yufeng introduced.
Practicing skills and improving physical fitness will eventually be transformed into actual play on the court. In order to accumulate practical experience, Shanghai women ruled out organizing adult teams to compete with youth teams, and invited teams from Zhejiang and Shandong to a friendly match.
In these internal training matches, the coach can fully understand the cooperation of the team and the state of the players, and try some technical and tactical changes. 03
Sand raft-feet buried in sand at 60 C.
Less than 8 o’clock in the morning, on the sand volleyball training ground, there are players in place. They are responsible for the "shower" work in the sand today. On a cool day, the players have two trainings every day: 8: 00 am-11: 00 am and 3: 00 pm-6: 00 pm.
Zhou Zhiguo, the leader of the beach volleyball team, said that sprinkling water on the ground can cool the sand on the one hand and reduce sand blowing on the other. Even so, in hot days, the heat storage makes the sand temperature soar to 60 C.
After running on the sand to warm up, the day’s training began. Serving, spiking, bouncing … According to different groups, everyone has their own training courses. In order to stabilize the center of gravity, the players’ feet repeatedly and deeply inserted into the sand. During training, coaches will arrange rest and hydration according to the weather and athletes’ conditions to prevent them from dehydration and heatstroke. After a short rest, they returned to the sand and began the next round of training.
No matter indoors or outdoors, no matter which team, even though the coach will privately say that it is not easy for athletes to train, no players on the training ground have ever complained that they are tired. While they are training, they don’t talk much. Only when they hit a good ball, make a loud cry and wave their fist-clenched right hand can their emotions be released. This is the spirit of volleyball in China.
Next time the corpuscle will take you.
Walk into the track and field sports center
Direct summer training for athletes
Reporting/feedback

The 1st National Middle School Volleyball Regional League Finals kicked off in Taixing, Jiangsu.

On the morning of February 17th, the opening ceremony of the 1st National Middle School Volleyball Regional League Finals was held in Taixing Sports Center, Jiangsu. Li Guodong, director of the Youth Department of the Volleyball Center of the State Sports General Administration, Mao Wuyang, director of the Volleyball Management Center of Jiangsu Provincial Sports Bureau, Xu Bing, director of Taizhou Sports Bureau, and Hui Xing, vice mayor of Taixing City attended the opening ceremony.
The opening ceremony. Nie Youshe
The 1st National Middle School Volleyball Regional League Finals was hosted by the Volleyball Management Center of the State Sports General Administration and China Volleyball Association, and was undertaken by China Middle School Volleyball Association, Jiangsu Volleyball Association, Taixing Culture, Sports, Radio, Film and Television Bureau of Jiangsu Province. It is reported that the finals were held in Taixing Sports Center Gymnasium, Jiangsu Taixing Middle School, Taixing Experimental Junior Middle School Wenjiang Branch and Taixing Jinjiang Primary School Chengjiang Branch from February 17th to 21st. About 670 people from 27 teams from all over the country participated.
In the game. Nie Youshe
On the same day, in the first match of the 1st National Middle School Volleyball Regional League Finals held in Taixing Sports Center, men from Hebei Sports Technical School lined up to beat Weifang Middle School Team in Shandong Province 3-0.
Zhang Cheng, the main attack team member of Hebei Sports Technical School, said that although we won the game today, we haven’t fully played our own level. Because in the first game, everyone (rhythm) is a little tight. In terms of one pass, the series connection of small balls is not good enough. We will gradually improve and strive for the next victory.
In the game. Nie Youshe
Li Yurui, a female volleyball player from Taixing Experimental Junior High School, said: "We are all very happy to participate in such a large-scale event at our doorstep. Our players are in good condition now, and we all hope to achieve excellent results in this competition."
Liu Qi, head coach of the women’s volleyball team at Tangzhang Middle School in tongshan district, Xuzhou, said: "In this competition, I felt the enthusiasm of the people of Taixing, and then the competition was well organized and the logistics support was perfect. This is the second time that we have come to Taixing. I hope the children can achieve better results in this competition." (Wang Shu, Xu Lu, Zhu Rong)
Reporting/feedback

The weather is changing! Snow! Sleet! It’s going to snow in Shanxi again!

Recently, with the blessing of sunny weather,
The temperature in most parts of Shanxi rose steadily.
The warmth in most areas will continue today and tomorrow.
The highest temperature in most parts of central and southern China is generally around 10℃
The northern region is around 5℃
However, while warming up,
Haze is back, too
This afternoon to night
There are mild haze in parts of central and southern China.
tomorrow
There are mild haze in parts of the south.
The small partners in the above areas should pay attention to protection.
Although the weather is getting warmer.
But ups and downs are also common.
Wednesday
A new cold air is online.
The warming process was interrupted.
At the same time, our province will usher in a wide range of rain and snow weather.
Wednesday
There is little to medium snow in most areas.
There is heavy snow in parts of central and southern China.
There is light rain turning to sleet or light snow in Linyun Basin.
Affected by cold air and precipitation
The highest temperature in most parts dropped significantly on Wednesday.
It is expected that Wednesday
Most of the highest temperatures will generally fall below 5℃
The temperature drop in some areas is about 10℃
The temperature fluctuates greatly.
Everyone should adjust their clothes in time according to the temperature change.
It is currently at the peak of Spring Festival travel rush’s return trip
Need to pay attention to prevention
Rainy and snowy weather accompanied by slippery roads and icy roads.
And low visibility.
Adverse effects on transportation, etc.
Written by Cao Rui, an all-media reporter from Shanxi Evening News
Comprehensive Shanxi meteorology, China weather and so on.
Editor: Cao Rui, all-media editor of Shanxi Evening News
Copyright belongs to the original author.
If there is any infringement, please contact this number to delete.
Reporting/feedback

It’s snowing Snowfall is coming in many places in Shandong. Agent: It’s all white. Pay attention to safety when traveling.

Interactive editor Niu Yun
Wake up,
It’s snowing
On December 11th, many places in Shandong ushered in snowfall. Intelligence agents sent information to Qilu Yidian Information Station, the official client of Qilu Evening News, and recorded the snowfall in various places with a lens. Let’s take a look ~
Jinan intelligence agent "sea breeze and clouds";Ruixue bodes well for a bumper year, and it snows in Jinan.
Jinan intelligence agent "Qin Zhen":Flying white all night, the earth is covered with silver. Since last night, it began to snow in Jiyang District, Jinan City. It is a good sign that the snow will be plentiful. My friend Sun Yanyu took a video.

00:58
Liaocheng intelligence officer "Teacher Jiang":This morning, when I opened the window, I saw that it was white outside, and large pieces of snowflakes were still dancing. A cold wind came, and I felt the cold wind was biting. I felt that winter was really coming today. It is ten degrees different from the warm winter of the previous days.
Texas intelligence agent "happy forever":Last night, there was a heavy snow, and the earth was wrapped in white, and it is still raining. Everyone should go out to prevent slippery!
Jinan intelligence agent "Lu Guangkuo";Flowers bloom unintentionally, and snow falls soundly. After waiting for a day and a night for a long time, it finally snows in Jinan, our city. It’s really nice to be white, but we must pay attention to travel safety.
Zibo Intelligence Officer "10327481":Snowflakes flying all over the sky dyed the sky white.
Jinan intelligence agent "Mr. Guo":At 5 o’clock in the morning, on the side of Jinan Tianqiao, I saw the goose feather snow outside the window and a thick layer of snow on the ground and roof. Please pay attention to safety when you go out.

00:22
Qilu reminds everyone that you must pay attention to safety when traveling in rain and snow!
Is it snowing in your city? From now on, as long as you take photos related to the weather, or exciting pictures or videos, or some security risks, and upload them to the information station, you will have a chance to get a headline red envelope ~
[Participation method] Download Qilu Yidian, the official client of Qilu Evening News, and post+text/picture or video upload at the information station. Find a reporter, go up a bit! Come to @ Online Reporter ~
Reporting/feedback

What is the function of the syllabus of the self-study exam course?

As a popular form of continuing education, more and more people choose to take the self-study exam to improve their academic qualifications. Many people who want to improve their academic qualifications are puzzled. They want to take the self-study exam for undergraduate courses, but they don’t know the specific policies for self-study. What is the role of the examination outline of the self-study exam course?

Click to enter:If you have any questions about the self-study exam, don’t know how to choose the main examination institution and major, and don’t know the local policy of self-study exam, click to learn now > >

What is the function of the syllabus of the self-study exam course?

According to the requirements of the professional examination plan and the characteristics of the self-study examination, the examination outline of the self-study examination course is a document that defines the content and scope of the course study and examination, specifies the course examination standards and makes the examination requirements concrete, and is the basis for guiding the proposition of individual self-study, social assistance and course examination. At present, the national unified proposition curriculum outline is attached to the designated textbook, and candidates should study according to the designated textbook and the course examination outline. However, at present, there is no examination outline for the unified proposition curriculum in some provinces, so the candidates of such courses can study according to the designated textbook.

1. The national unified proposition is the national self-taught examination and the proposition center organization proposition, and the knowledge of the examination is relatively general, so this kind of question type will be relatively difficult. It will usually be the last big question.

2. Regional cooperation proposition, which is a joint proposition of various provinces and cities, will be closer to the examination syllabus of candidates in various provinces and cities, which is slightly simpler than the national unified proposition. However, due to the different characteristics of propositions in various regions and provinces and cities, some questions may be questions that candidates have not been exposed to at ordinary times. Most of these questions are multiple-choice questions and fill-in-the-blank questions, which are difficult and easy, and each question is relatively novel.

3. Provincial Proposition This is a proposition organized by each province, city and autonomous region. Relatively speaking, the test questions will be relatively simple and closer to the questions that candidates usually come into contact with; This type of question is also a scoring question for candidates. Usually, multiple-choice questions and noun explanations are the majority.

The above is related to the adult self-study exam, and candidates can use it as a reference, which is subject to the official announcement! Candidates who want to get more information about the self-taught examination, such as the registration time, examination time, application conditions, preparation knowledge and related news, please pay attention to the online self-taught examination channel of China Education.

Popular recommendation:

If you have any questions about the self-study exam, don’t know how to choose the main examination institution and major, and don’t know the local policy of self-study exam, click to learn now > >

Recommended reading:

In April, 2024, all provinces registered for self-study exams in official website.

Summary of Registration Time and Entrance of Self-taught Exams in April 2024 by Provinces

Heart-warming grass-roots level in winter Gansu Sports Lottery Consolation Sports Lottery Agency

  Time changes, and the initial heart remains the same; When you are cold, your feelings are warm. In order to thank the hard work of the first-line sports lottery agency in the physical store, the Provincial Sports Lottery Center launched a condolence activity of send warm in the Spring Festival and caring for the difficult agents.

  On January 31, the leaders of the provincial center led a team to Baiyin City to carry out condolences. Mr. Zeng, the agent of 6208008129 physical store in Jingyuan County, has his own physical illness, and he has to take care of his old mother who has been ill for a long time. He relies on selling sports lottery tickets to make a living every day. Despite the difficulties, Mr. Zeng still strives to do a good job in the sales of sports lottery tickets. On weekdays, he still insists on finding time to do analysis and research on gameplay, and shares his experience with his peers without reservation, which has won unanimous recognition and respect from everyone. The leaders of the provincial center and the staff of the Silver Management Sub-station sent greetings and condolences to Mr. Zeng during the Spring Festival, asking about the difficulties in life and the support he needed, encouraging him to persist in doing a good job in sales, and setting an example for other consignment agents to love their jobs and be dedicated.

  The condolence group came to the store of Ms. Lu, the agent of 6208008110 in Jingyuan County. Ms. Lu suffered from eye diseases and could not adapt to other jobs. After choosing the career of selling Chinese sports lottery tickets, she cherished the hard-won job opportunities and always loved her job. After more than five years of study and practice, she has grown into a qualified agent. "Thanks to the Chinese sports lottery, I have a stable job and can make some contributions to social welfare. I am also very proud and proud." Ms. Lu sincerely regrets.

  Visiting all the way, the condolence group learned in detail about the implementation of the responsibility lottery in the physical store and the service quality of the market administrator, listened carefully to the opinions and work suggestions of the agency, and understood the difficulties existing in the operation process. It also encourages administrators and consignment agents to base themselves on their posts and continue to contribute to the development of sports lottery public welfare undertakings. At the same time, it also conducted a spot check on the safety production of sports lottery stores, focusing on guiding the consignment agents to investigate the hidden dangers of fire prevention, waterproofing, theft prevention and electricity consumption in the stores, reminding them to pay attention to personal and property safety, and earnestly implementing the safety production requirements of the State Sports General Administration and the Provincial Sports Bureau, so as to escort the sales peak before the Spring Festival and the safety of the Spring Festival holiday.

  Recently, New Year condolence activities are being carried out in Gansu Sports Lottery. A little condolence, full of heart, sent Gansu Sports Lottery to the grassroots, caring for the warmth of difficulties, and gained the understanding and support of sports lottery agents and salesmen, and responded well to the work. Gansu Sports Lottery will do a solid job in preventing safety production risks, strictly implement the requirements of responsible lottery, and ensure the high-quality development of China’s sports lottery. (Liu Zixian)

In January, 2024, Sanya Automobile Driver Training School passed the exam ranking →

In order to further standardize the management of motor vehicle driver training schools, strengthen the examination of motor vehicle drivers, and effectively ensure the first pass of road traffic safety, the examination quality of motor vehicle driver training schools in the city in January 2024 is hereby notified as follows:

Examination of motor vehicle drivers in our city

In January, 2024, there were 14,460 motor vehicle drivers in all subjects in our city, and the number of qualified drivers was 10,125, with an average pass rate of 70.02%. Among them:

One subject

2810 people took the exam, and 1680 passed, with a pass rate of 59.79%;

subject two

4308 people took the exam, and 2696 passed, with a pass rate of 62.58%;

Subject three

3,902 people took the exam, and 2,800 passed, with a pass rate of 71.76%;

Safety civilization common sense examination

3,440 people took the exam, and 2,949 people passed, with a pass rate of 85.73%.

Average passing rate of all subjects in driver training schools in our city in November.

Reporting/feedback

Sports Lottery Helps Erdos Hiking in Ice and Snow

Recently, the national fitness ice and snow hiking activity was held in the Riverside Square in Wulanmulun, kangbashi district, Erdos, Inner Mongolia.

At the event, an instant sales booth was set up, public welfare publicity panels were placed, and promotional materials of China sports lottery were distributed. Sports lottery staff on-site popular science sports lottery public welfare and rational lottery purchase knowledge, so that participants can understand the public welfare attribute and responsibility of sports lottery. An interactive gift-winning activity was also held at the scene, and gifts such as badminton rackets, mouse pads and paper drawing with sports lottery logos were given to the participants. Just before the opening of the sales booth, a variety of Spring Festival theme tickets were warmly welcomed by everyone. Many hikers who came to participate in the competition not only gained the joy of sports, but also received a lucky participation in sports lottery games. The event also provided disposable cups and paper-drawing printed by sports lottery for the contestants, bringing colorful warmth to the cold winter. (From January 31st, China Sports Daily, 08 edition) 

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This is a special reunion dinner …

Our reporter Roman

During the Spring Festival, the happiest thing is for the whole family to sit around and have a reunion dinner. However, for homeless vagrants, it is an extravagant hope to have a reunion dinner with their families. In order to let the rescuers have a warm and happy New Year, this (5th) morning, Luzhou Rescue Management Station specially held a Spring Festival Youth League activity for them.

Sticking Spring Festival couplets and decorating … The staff of the rescue station began to decorate the station for the upcoming Spring Festival a few days ago to create a festive New Year atmosphere. Early this morning, everyone began to be busy, preparing melons, fruits, snacks and delicious food for the recipients.

At noon, the recipients put on beaming new cotton-padded jackets, sat around, watched TV and had a reunion dinner to celebrate the New Year.

According to Jiang Weifen, the stationmaster of the municipal rescue management station, there are currently 14 recipients in the municipal rescue management station, four of whom have recently entered the station and are still in isolation. Due to the need of epidemic prevention and control, there are 10 recipients attending the annual meeting of the group today, and they also eat separately, and the other four are delivered by special personnel.

The staff served meals for everyone.

At the annual meeting of the Communist Youth League, although everyone wore masks, it was hard to hide their joy. The recipients and the staff were talking and laughing together, and they were very happy. Several recipients even danced with the music. The scene was full of laughter, joy and peace.

Jiang Weifen told reporters that all the 14 recipients at present have mental and intellectual disabilities, and they have not found out their identity and family information. The longest time to come to the station has been more than one year, of which the youngest is 15 years old and the oldest is about 70 years old.

Maybe they have a home in their heart, but they don’t know where they come from, where their home is, and whether they have any family. In the city rescue management station, the staff treat them as relatives and children, and take care of them patiently and carefully, so that they have a place to live and a "home". Having a reunion dinner together on the occasion of the New Year makes them feel the festive atmosphere and the warmth of home. This is undoubtedly the embodiment of the motherland’s growing strength, social civilization’s progress and love everywhere in the new era.

Original title: "This is a special reunion dinner …"

Once a year, Buffett will appear on the screen! These five stocks may have a chance.

  Tomorrow, our mobile phone will be screened by Buffett again!

  At 22:15 Beijing time on May 4th, the annual shareholders’ meeting of Berkshire Hathaway will be held in Omaha, USA. It is estimated that about 30,000 shareholders will attend, and millions of people will watch it online. The most noteworthy issues of this shareholders’ meeting include:

  Who is Buffett’s successor? — — Bashen is 88 years old and Munger is 95 years old.

  What about Berkshire’s more than $110 billion in cash? — — Look at the company’s share price of $320,000. Do you still think Maotai is expensive?

  The repurchase scale will be as high as $100 billion? — — There are not many good companies worth buying, so I have to buy myself.

  However, for A-share investors, they may be more concerned about this question: What does Buffett think of the China market? Which stocks of A shares meet its stock selection criteria?

  Which A shares can enter the eyes of the law?

  There are many criteria for Buffett’s stock selection, but there are clear quantitative criteria. He only said one sentence, that is, the annual return on net assets (ROE) is greater than 20% for 10 consecutive years.

  The so-called return on equity (ROE) is the ratio of company profits to shareholders’ equity. It represents the investment income of investors, in short, how much money the enterprise can earn for investors.

  ROE is a measure of a company’s long-term profitability. The higher the ROE, the higher the net profit it earns with the same shareholder capital investment. According to Coca-Cola’s standard, that is, keeping the ROE above 20% for 10 consecutive years, it is the company that Buffett may like.

  So, which companies in A shares meet Buffett’s standards?

  Wind data shows that in the 10 years from 2009 to 2019, among the listed companies whose ROE (deduction/dilution) continuously exceeds 20%, there are only five listed companies in A shares, namely Kweichow Moutai, Haitian Weiye, Gree Electric, Yanghe and Chengde Lulu.

  The average share price increase of these five listed companies in the past 10 years is 690.49%, and the annualized rate of return is 22.97%. The biggest increase is Kweichow Moutai, which rose 12 times in 10 years, followed by Gree Electric, which rose more than 11 times in 10 years.

  If we relax the ROE standard to 15%, that is, we will keep the ROE above 15% for 10 consecutive years. So, how many companies in A shares meet this standard?

  Wind data shows that in the 10 years from 2009 to 2019, there were 14 listed companies with ROE (deduction/dilution) exceeding 15% continuously, namely Shuanghui Development, Kweichow Moutai, Haitian Weiye, Hikvision, Gree Electric, Huadong Medicine, Yanghe, Chengde Lulu, Hengrui Pharma, Chongda Technology, dongfeng shares, Fuyao Glass and so on.

  The average share price increase of these 14 listed companies in the past 10 years is 551.72%, and the annualized rate of return is 20.62%. Among them, Hengrui Pharma, Kweichow Moutai and Gree Electric rose more than 10 times, while Huadong Medicine, Hikvision and Golden Mantis rose more than 5 times.

  Is Bashen’s strategy unacceptable?

  In the past 10 years, what is the investment income of Warren Buffett?

  According to media calculations, if an investor bought a dollar of Berkshire stock 10 years ago, the return today is about $2.4, but if this dollar is invested in the Standard & Poor’s 500 Index Fund, the return today is about $3.2. In other words, in the past 10 years, the income from investing in Berkshire has not been as high as that from investing in the S&P 500 index fund.

  In 2018, the worst performance of global financial assets in the past 100 years, the "stock god" seems to be unhappy. Suffering from various "thunder" such as Apple’s performance falling short of expectations and Kraft Heinz’s performance changing face, Berkshire lost more than $25 billion in the fourth quarter of 2018, but still earned more than $4 billion in the whole year.

  But in A-share market, Buffett’s stock picking strategy still seems feasible.

  In the past decade, 108 A-share stocks have increased more than 5 times, and 29 have increased more than 10 times. The median ROE of these 29 stocks is 14.88%. During this period, the Shanghai Composite Index rose by 24.72%, the Shanghai and Shenzhen 300 Index rose by 50.2%, the CSI 500 Index rose by 74.59%, and the Shenzhen dividend index rose by 132.51%.

  Obviously, those companies with long-term earning ability and dividend-paying ability can surpass the market if they buy at a reasonable price. However, it should be pointed out that value investment is by no means equal to an ROE index, and the stocks selected according to it are not necessarily suitable investment targets, but only help us find out those good companies more easily.

  The above data illustrates two problems:

  First, as Buffett said: "By investing in index funds regularly, an investor who knows nothing can usually beat most professional fund managers." Buffett has recommended index funds for more than ten times.

  In Buffett’s view, the vast majority of investors rarely invest in index funds, and as a result, their performance in investing in stocks is mostly just mediocre, or even disastrous. There are three main reasons for the loss of investment stocks:

  1. The cost is too high, investors buy and sell too frequently, or the expenses are too large;

  2. Investment decisions are made according to gossip or market trends, rather than after careful consideration and quantitative analysis of listed companies;

  3, blindly chasing up and down, buying or selling at the wrong time.

  Second, practice has proved that the companies with the strongest earning power in A-shares can bring rich long-term returns to investors.

  The overall growth level of A-share listed companies is better than the average level of social enterprises. The long-term stock price trend charts of leading enterprises such as Gree Electric, Vanke A, China Merchants Bank, China Ping An and Fuyao Glass are all consistent with the development path of enterprises.

  The method of value investment has not failed in A-shares. In fact, A-shares will create a good opportunity for value investors to pick up bargains every few years, making it easier for investors to meet good prices. Numerous masters have emphasized that all investment is to find a good industry, a good company and a good price.

  Finally, Buffett has bought two China stocks so far — — China Petroleum and BYD.

  In 2003, Buffett bought H shares of China Petroleum at a price of HK$ 1.6, and cleared the position when the share price reached HK$ 13.5 in 2007, with a four-year income of more than 7 times (the reinstatement factor has been considered, the same below). When Buffett bought it, the P/E ratio of China Petroleum was only 5 times, while when China Petroleum was listed on A-share in 2007, the P/E ratio of 48 yuan’s opening price was as high as 63 times.

  In 2008, Buffett subscribed for 225 million shares of BYD at a price of about HK$ 8 per share. At present, Buffett still holds shares in BYD, and its latest share price is HK$ 53.55, and its income has exceeded five times. When Buffett bought BYD shares, the corresponding P/E ratio was only 10.2 times. At present, its latest P/E ratio is 39.29 times.

  China securities journal Song Zhaoqing