Three Hundred and Twelve, the Administrator of the Library

In the morning, Ren Xiaosu was reading in the library, while An Yuqian was sitting at the door of the library, leaning on a chair and sound asleep.

If the sun shines on An Yuqian's face from outside the door, An Yuqian will hold a book on his face to block the light.

Every morning when Ren Xiaosu came, he would consciously give ten yuan to An Yuqian, and An Yuqian didn't need Ren Xiaosu to call to remind him. He would wait at the door yawning at 8:30 every morning.

Gradually, An Yuqian felt so uncomfortable all the time. He used to play mahjong all night and then sleep well at home in the morning.

As a result, after the person named Ren Xiaosu came, he could only sleep on a chair in the library!

Leaning on a chair, is it as comfortable as sleeping on a bed?

Taking advantage of the fact that there was no one in the library, An Yuqian took a special look at what book Ren Xiaosu was reading, but he almost died laughing, it turned out to be a math, physics, and chemistry textbook for the first year of high school!

Ren Xiaosu insisted on coming to the library for so many days, but finally made An Yuqian look at it with admiration. An Yuqian thought that this library finally came to a student who was eager to learn, but in the end, he read the textbook for the first year of high school.

Given Ren Xiaosu's age, he must be in the third year of high school, right? The co-author is a poor student who started tutoring from scratch?

An Yuqian counted with his fingers. There are only three months left before the college entrance examination. Is there still time for tutoring for the first year of high school?

Even though An Yuqian was walking around, Ren Xiaosu didn't even look up at him.

An Yuqian couldn't help it anymore: "It's a bit late for you to make up classes now, the college entrance examination is only three months away!"

Ren Xiaosu looked up at him: "I don't take the college entrance examination."

"Don't take the college entrance examination? Then why do you study mathematics and physics in the first year of high school?" An Yuqian was startled: "Don't you go to the factory after graduation? What's the use of learning this stuff."

"Knowledge is useful, and the knowledge you learn is your own," Ren Xiaosu said calmly.

An Yuqian shrugged his shoulders, turned around and left: "Don't forget that you can do it before breakfast every day. If it weren't for you, I wouldn't have had breakfast at all. The extra cost is because of you..."

"Got it," Ren Xiaosu said.

However, An Yuqian suddenly discovered that besides Ren Xiaosu, there was actually another group of students who suddenly came to read books in the afternoon without any warning.

There are more than 20 male and female students in total, and they have been sitting in the library for a whole afternoon, for several days in a row.

We must know that although there were people who read books in the past afternoon, they were not so frequent and stable, and the number was so neat. This group of students... actually sat next to Ren Xiaosu in an organized and disciplined manner.

After waking up in the afternoon, An Yuqian went over to take a look, and found that Wang Yuchi and others were reading books related to mechanical manufacturing, which had long exceeded the syllabus of high school.

When the library was closing, Wang Yuchi suddenly said to Ren Xiaosu: "Squad leader, it's time to close the door and go home?"

An Yuqian was stunned on the spot, the boy who gave him breakfast money every day was actually the monitor of this group of students? Ordinary students learn things beyond the outline, and the class leader teaches himself in the first year of high school?

It's all a mess...

Ren Xiaosu looked up at the sky: "Go back first,

I'll watch it later. "

"Hey," An Yuqian couldn't sit still: "I should get off work, you know!"

"50 for you!" Ren Xiaosu said without raising his head.

An Yuqian was not happy: "That's not okay, I should go play mahjong, maybe I can make money tonight!"

Ren Xiaosu quietly put the book back on the shelf, turned around and left.

The first thing Ren Xiaosu said before seeing An Yu the next morning was: "Have you changed the book?"

"Why is your mouth so broken?" An Yu said with a toothache in front of him, "Is this something you should ask?"

"That's a loss," Ren Xiaosu patted An Yu the first ten yuan: "Go and eat breakfast."

Holding ten yuan in his hand, An Yuqian felt insulted...

In the afternoon, when Wang Yuchi and the others came again, An Yuqian suddenly sat across from him, and Ren Xiaosu looked up at him in surprise: "What's the matter?"

An Yuqian said: "You are mainly supplementing the knowledge of mechanical manufacturing, but you are reading the wrong book!"

Ren Xiaosu frowned, and glanced at the book in the hands of Wang Yuchi and the others: "Then what should we read?"

Without a teacher to teach them, they can only grope forward like crossing a river with stones in their arms, and the progress is extremely slow.

Although Jiang Wu is a teacher, but Jiang Wu is a Chinese teacher...

At this time, An Yuqian said: "500 yuan, I will tell you what to look at!"

As soon as the words fell, Ren Xiaosu threw five hundred dollars over, and Wang Yuchi whispered beside him: "Squad leader, why do I feel that he is a liar?"

Ren Xiaosu shook his head: "Liars don't even have breakfast money."

An Yuqian almost yelled at him, insinuating that he is not even qualified to be a liar!

An Yuqian sneered and said: "If you want to learn mechanics systematically, don't try to run like others before you can walk. You have to learn mathematics and physics well first!"

Ren Xiaosu leaned back in his chair and listened silently, while Wang Yuchi and the others had already started to open their notebooks, ready to take notes.

"I suggest that you read "Mathematical Analysis" written by Chen Jixiu as an introduction, and then linear algebra is a must, which is not enough for you to learn in high school courses."

"Don't read "Puwu," An Yuqian threw a book on the table: "Just read this Feynman handout."

"Real analysis...forget it, don't look at this first."

"As for mathematical physics methods, look at Wang Dexin's. What everyone talks about is basically real variable functions, special functions, mathematical equations, and the like. There is not much difference."

"You have to see it, heat system."

"You should also look at electrodynamics."

An Yuqian talked on and on for half an hour. Ren Xiaosu felt that it would take several years to learn this method, but An Yuqian said at this time: "This is just the beginning. If you want to really involve in sophisticated mechanical manufacturing, you are still far behind!"

Ren Xiaosu understood that he co-authored this thing to show off his quick tongue...

However, Ren Xiaosu also suddenly realized that this An Yuqian was not an ordinary person. Even if he was a liar, he probably wouldn't recite so many things just to earn 500 yuan. The most important thing was that no one could teach him to recite.

Ren Xiaosu looked at An Yuqian and said, "You come to teach them, and I will pay you 500 per class."

An Yuqian's eyes lit up, but he immediately became reserved: "My time is precious..."

"400."

"Hey, why are there fewer and fewer!"

"300."

"I'll teach! 500! Not a penny less!"

Only then did Ren Xiaosu laugh: "If you can't teach well, I won't pay you."

"Can I teach you well?" An Yuqian's eyes widened: "I, An Yuqian...forget it, you won't understand even if I tell you!"

It's just that An Yuqian suddenly felt that the boy in front of him was probably more complicated than he imagined. Who would pay 500 yuan for a class?

...

The fourth is to make up for yesterday.

Push a friend's book, the author of Yushouzhai's new work "Master Dragon King"

Introduction: The overturning super pet warriors are submerged in the long river of history.

Mechanical civilization rises under the siege of the Sand Zerg.

The former Canglong Warrior has disappeared, and now the God Mecha guards human civilization.

Zhang Qingyang and that tsundere cat inadvertently embarked on a long march to find the pet animal civilization...