Chapter 309

In senior mathematics class, Yang Rui listened very carefully.

Although some people can learn advanced mathematics through self-study, it's really just some people. In fact, there are many ways to learn mathematics, but only for a few people.

For example, the famous Mr. Hua Luogeng's way of reading is very distinctive. When he gets a large mathematics book, Hua Luogeng's method is to read the first few pages, then close the book, meditate, and then turn directly to the last page of the book to see the answer. If the answer is correct, the book is read.

Hua Luogeng himself read countless books in this way, but in reality, few people can use this method.

Yang Rui doesn't have any mathematical talent and doesn't pursue advanced mathematical skills. He just needs to reserve some mathematics.

In history, although there are some biological animals that are very strong in mathematics, this is not a necessary condition.

In Yang Rui's opinion, although mathematical genius is rare, it is not uncommon in university campuses. Just look for it whenever you use it. For example, Zhao Pingchuan, an ordinary genius who is not even a math major, is enough for ordinary biological laboratories.

However, Yang Rui's mathematics reserve is far from enough. Fortunately, he will not waste his chance to study in Peking University. No matter how busy he is in the laboratory, advanced mathematics will always come to him.

There is no doubt that the focus of education in Peking University today is in the undergraduate class. Almost the best professors, including the former academician, will try their best to give lectures to the undergraduate class. This is only the elite education in the 1980s - the most open attitude, the most free thinking, the most excellent students, the most top professors, and the most concentrated resources.

This kind of quality of education is hard for posterity even doctoral students to enjoy. In fact, doctoral students no longer attend classes. In most cases, doctoral students study and work in the process of research, which is no different from lecturers and teaching assistants in universities. However, after 30 years, if they want to enjoy the high-level teaching of small classes in the 1980s, they can only go to Harvard, Cambridge.

Yang Rui is very interested in advanced mathematics and other courses. He can also do exercises when he has time. In terms of progress, he is also a superman. At the end of a class, he went to the platform to ask the professor.

After all, Yang Rui has been a student for a long time. He will have no problem in a short time if he goes on to a higher level of mathematics.

Today's professors are also happy to answer. They will not leave in a hurry after class. It's only four or five years since the resumption of the college entrance examination. Many professors have just returned to school. It's time for them to burst out of enthusiasm

Yang Rui stayed in the classroom for a long time, but Chen Yi and others outside were worried and had to hide behind the classroom to confirm Yang Rui's behavior.

When Yang Rui finished the problem and went out, Chen Yi was in a fluster again, and ran quickly to catch up with him.

"Mr. Yang." Chen Yi panted to Yang Rui's back: "I've inquired about the stamps and made a list. Would you like to have a look?"

"Watch as you walk."

"Just a moment." Chen Yi turns over his shoulder bag and gives Yang Rui a notebook.

There are 20 sets of Mei Lanfang and 100 sets of "love science from childhood". Although they are relatively common stamps, they are also of relatively high value. For example, Anita Mui can sell for hundreds of yuan in the 1980s.

However, there is still a big gap between such stamps and Yang Rui's expectations.

He flipped down at random until he saw the complete set of military mail.

In the field of stamp collecting, military stamps usually refer to "Huang Junyou", "purple Junyou" and "blue Junyou". The most famous one is blue Junyou, which sold for 800000 yuan in 1994. As for the whole set of military stamps, the price is as high as 1200000 yuan.

In Xiao Chen's notebook, the price of this set of stamps is 6000 yuan, which is more expensive than 20 sets of Mei Lanfang, but there is much room for appreciation.

Of course, such a complete set of military mail is available but not available, and it is also excellent to stay.

Yang Rui closed his notebook and asked, "are these things the other party confirmed to sell?"

"Sure, it's for sale."

"I only want the whole product, and the price is 20% off collectively. I want all of them. If I can, I'll trade them." Yang Rui handed the notebook back to Xiao Chen and left.

Small Chen Leng for a while, also don't know this is good or bad, hurried back to report.

The next day, another round of bargaining, Yang Rui to 8. At a 50% discount, I bought all the stamps of the other party, which inspired all the people in the office.

For a transaction of more than 30000 yuan, you can take out the money at one go, but even the counter-offer is not particularly fierce. Such local tyrants naturally make people feel that people are stupid and money comes quickly.In addition, the original owner of the stamp also bought 2000 pieces of treasury bonds to show his gratitude. For the bank directors who sell treasury bonds and heart diseases, this is better than any special medicine. At the same time, they are ready to introduce more stamp collectors to Yang Rui.

In the school, Yang Rui earned the manuscript fee to buy the national debt.

Since the new year's party, Yang Rui has been quietly concerned about the school draft. If someone else has bought the national debt, it will be discussed in the class or department at most.

It was said that Yang Rui had bought the national debt, and no matter whether he really bought it or not, the news suddenly flew out.

And it became a hot topic in the next few days.

On Friday, Yang Rui was blocked in the dormitory by the president of the student union.

"Join the student union." The chairman was also dressed in a woollen overcoat, holding his hand in his pocket. He was very handsome and said: "the student union is a student organization and a link between the school and students. I think you are very suitable to join the student union, Yang Rui..."

He said a lot, and then looked at Yang Rui with his dark eyes, as if he was waiting for him to accept his head.

It's an excellent choice for students to join the student union. Because it is still a distribution system, the student union has the advantage of good distribution. Although it is not necessarily able to be assigned to a good unit, but in the case of choice, student union cadres can always get a better choice.

This is a direct benefit, which is quite different from the indirect benefit of the student union of later generations.

However, Yang Rui didn't pursue this at all. He said with a smile, "I'm busy in the laboratory. I'm afraid I don't have time for the student union. I'm sorry."

Laboratory work is an excellent privilege, especially Professor Tang's management is loose, almost casually Yang Rui raised his banner.

It seems that your excellency didn't expect that he would be rejected when he came out in person. He was stunned for a moment, and then showed his face with a smile and said, "you'd better think about it again. In this way, come to our student union and have a look. I'll give you a call."

……