One stew and one plate of vegetables for each person.

Feng Lin took the initiative to pay, and Liu Yichen did not rush to pay. Feng Lin agreed yesterday that if he paid, Feng Lin would be unhappy.

While eating, the NBA Los Angeles Lakers vs. Minnesota Timberwolves was playing.

The conversation between the two turned to this game, and the focus was on Kobe. The Black Mamba, wearing the No. 24 jersey, basically suppressed all the negative influences on him after his crazy scoring last season.

Already, the crazy 81 points against the Raptors, the 62 points in the three quarters against the Mavericks, which was higher than the 61 points of the Mavericks team. He scored 45 points or more in 4 consecutive games and averaged 43.4 points per game throughout the month.

Scored more than 40 points in 27 games in a single season, scored 2,823 points in a single season, and won the league scoring title for the first time with an average of 35.4 points per game.

In the final analysis, the Black Mamba is a sports star, a basketball star, not an entertainment star. For basketball stars, the most important thing is the performance on the court. As for the turmoil off the court, it is actually not that important.

And this season, just last month in the All-Star Game, the Black Mamba won the NBA All-Star Game Most Valuable Player Award for the second time in his career with 31 points, 6 assists, and 6 steals. There is no doubt that he is the NBA's most valuable player.

A superstar, not to mention the number one player in the NBA right now, but no matter how you rank him, he probably won't be among the top three.

Of course, Liu Yichen’s idol is Tracy McGrady, but unfortunately, he may really be the lone star of the gods. McGrady has always been unable to break through the first-round curse. It is true that he is an NBA superstar now, but the remaining glorious years are not long, so Liu Yichen is actually more

I like to watch Rockets games, because every time I watch Tracy McGrady play, I have one less chance. And the Black Mamba still has a long career.

Of course, Liu Yichen also admitted that the Black Mamba has a full personality, plays basketball beautifully, has really superb skills, and his scoring ability is really amazing. With that kind of explosive scoring, no one can stop him when he goes crazy.

This season is the last season of the Black Mamba’s madness. Next season, with the completion of the Lakers’ reorganization and the ability to compete for the championship, the Black Mamba will not score as crazy as in the past few seasons. After all, for him, what is missing is not

To prove his scoring ability, he needs to prove that after leaving the Sharks, he can also lead the team to win the championship and prove his ability to lead the team.

"This three-pointer is beautiful!" As a fan of the Black Mamba, Feng Lin watched it very seriously. Liu Yichen had already finished his meal, but she only ate half of it.

Liu Yichen curled his lips, "Sure enough, women can easily become crazy fans, and they didn't even look at the Black Mamba's 'raised elbow', causing Marko Jaric to suffer directly."

However, Liu Yichen also understands that compared to the brilliance of a superstar, it is difficult for Marko Jaric to score more than 10 points. He is just a substitute. Who would sympathize with such a substitute and even call him Marko Jaric?

foul.

Alas, the weak are always the most pitiable, and the weak are always the original sin!

The law of the jungle has never gone out of style.

After accompanying Feng Lin to watch the game, the two returned to school together. Liu Yichen went to the library. It was still early and he could read some books in the library, while Feng Lin went back to class.

...

"If a, b are integers, and (a, b) = d, then for any integer x, y, axby must be a multiple of d; in particular, there must be an integer x, y such that axby = d is true.

"Study Pei Shu's theorem and immerse yourself in this theorem.

Pei Shu's theorem is a theorem about the greatest common divisor or greatest common formula in number theory. It was proposed by Etienne Pei Shu.

Based on Peishu's theorem, we can get an inference: the essential condition for a and b to be mutually prime is that there are integers x and y such that axby=1.

After reading Pei Shu's theorem, Liu Yichen's head felt a little heavy. The content and knowledge points required for the high school math Olympiad competition are 17 major points, 101 minor points, and 244 minor points. It can be said that this is a huge challenge for every high school student.

challenge.

The Mathematical Olympiad textbook alone is such a thick volume, not to mention the previous Mathematical Olympiad competition problem sets. The notes and scratch paper Liu Yichen took together are thicker than the Mathematical Olympiad textbook.

But now, he has only learned less than a third of it, and there is still a lot of knowledge behind.

Liu Yichen couldn't help but secretly admire those who could win the first prize in the provincial competition. As for those who could win the first prize in the finals, or even join the Chinese Mathematical Olympiad team to participate in the International Mathematical Olympiad, Liu Yichen could only look up to them now.

In recent years, the Chinese Mathematical Olympiad team has repeatedly won gold medals in the International Mathematical Olympiad competition, bringing glory to the country. A group of outstanding young mathematical geniuses have emerged, which has also given great encouragement to domestic mathematics enthusiasts.

For example, it won the championship for four consecutive years from 1999 to 2002, and the three-year championship from 2004 to 2006. It can be said that it was the best and most dazzling performance of the Mathematics Olympiad teams of various countries in the past ten years, making the Chinese Mathematical Olympiad team famous on the international mathematics stage.

.

This year, the 48th IMO in 2007 will be held in Hanoi, the capital of South Vietnam, from July 19 to 31, which will also attract the attention of countless mathematics enthusiasts.

There is no doubt that the imo test questions that will be released at that time will test the learning situation of Liu Yichen and others, and how far they are from the top mathematical geniuses.

And this is only 4 months from now.

Time is becoming increasingly urgent.

On this day, Liu Yichen went to the newspaper office and read some current affairs news. This was one of Liu Yichen's few interests. He followed current affairs news and paid attention to international and domestic events.

"Stock market?" Suddenly, Liu Yichen was startled and couldn't help but look thoughtful. He saw that in the economic section, they were all about the bull market of the stock market since 2006, and the stock market was booming.

Liu Yichen didn't know much about the stock market, whether it was the domestic stock market or the overseas stock market, but he knew that it was best not to touch the domestic stock market, because if you jump in, you would be a leek, a leek in the eyes of the banker, and he would cut it from time to time.

Wave.

"Should we invest in financial management?" Liu Yichen pondered for a moment. He now has a lot of money in his bank account, and he has no financial management skills. He doesn't understand the stock market, but he knows that buying a stock this year is guaranteed to make good returns.

, that is Apple in the US stock market. Next, Apple will usher in the era of smartphones and become a leading enterprise of the era. Now the mobile phone empire Nokia will fail inexplicably. The mobile phone empire built by one hand will collapse in just a few years.

Since then, the mobile phone market has been lost, and it can only be maintained by relying on patents.

Apple, on the other hand, has made substantial profits. Jobs once again established himself as a god and has countless fans around the world. Apple has long-term cash flow reserves of at least 200 billion US dollars, and its strength is still greater than that of the Nokia mobile phone empire.

There is even a legend that in the era of smartphones, Apple used 10% of its sales to account for 90% of its profits, and even introduced the ‘Apple tax’, a global tax that is hated by countless people.

Therefore, if you buy Apple stocks at this time, you will definitely make a profit without losing money.

Although Liu Yichen doesn't know when the iPhone smartphone will be launched, it will be either this year or next year.

As for buying a house?

Now is not a good time to buy a house, because Liu Yichen remembers that a financial crisis swept the world in 2008, and real estate would also usher in a cold winter, and buying a house at that time was the only bargain hunting.

Thinking of this, Liu Yichen made up his mind to use the money in his bank card to buy Apple shares.

"Classmate, do you want to buy stocks?" A counter staff member of the Agricultural Bank of China looked at Liu Yichen in confusion.

"Well, if I want to buy U.S. stocks, can I open an account at your bank?" Liu Yichen asked.

"We can't open an account at the bank, but I can introduce it to you." The staff said: "But if you want to buy U.S. stocks, you have to go to a big securities company and do it through Hong Kong stocks."

Liu Yichen felt a little helpless. This is the helplessness of this era. After a few years, it would be easy to open an account directly on the app, but now... it cannot be done.

Subsequently, under the guidance of the counter staff, Liu Yichen came to the third floor, where he cooperated with China Galaxy Securities Co., Ltd. Liu Yichen first went through the procedures and opened an A-share account, because his business department in the mainland could only open an A-share account.

stock account, but Liu Yichen submitted relevant documents to prove it. These documents will be sent to the China Galaxy Securities (Hong Kong) Sales Department, and after verification, the account can be opened.

After working on it for 5 days, Liu Yichen finally succeeded, and the staff also installed a stock program on his computer, on which he could watch the rise and fall and trade.

After Liu Yichen figured it out, he converted all the 12 million yuan in the Agricultural Bank of China card into U.S. dollars, and bought all 1.551 million U.S. dollars of Apple stock. At this time, the price of Apple's stock was 11.94 U.S. dollars, and Liu Yichen bought a total of 129,789 shares.

"I don't know when Apple will release the iPhone." Liu Yichen muttered to himself. Before Apple launched the iPhone, it wasn't that magical. It wasn't until the iPhone was launched that the smartphone really took off.

When Liu Yichen was at the securities company, the account manager kept objecting, saying that it was a junk stock, and that Apple might go bankrupt when it could no longer sustain itself. He also said that all smartphones were deceptive, and even Nokia looked down on it.

Smartphones. He also promoted several stocks to Liu Yichen, and vowed that they would definitely rise.

However, Liu Yichen doesn't know much about stocks. He doesn't know how these stocks will rise in the future. He only knows that Apple's stock will rise in the future, so he is very determined and will not waver at all. And even if he wants to buy other stocks, he will wait until later.

Tencent stock, as for other things, he doesn't know anything about it, so he won't touch it at all.

After doing this, Liu Yichen did not open the stock software or look at the account again. Even if he had to buy a Nokia mobile phone because he wanted to open an account, Liu Yichen set it to mute and threw it in his backpack.

He puts all his mind on learning, swimming in the sea of ​​questions every day, constantly absorbing new knowledge, so as to make himself stronger.
Chapter completed!