On Monday morning, the first class was on.

Du Zhenggang, associate professor of physics, stood at the lectern, talking about mechanics in a low voice, spitting on mechanics, and there were thirty or forty students sitting in the huge lecture hall.

Except for a few people who secretly play with their mobile phones, the vast majority of people are listening carefully, at least on the surface.

Only Lin Xi rested his head on his arm and fell asleep on the table. It's not that she hates studying mechanics, but she didn't go to bed until after three o'clock in the morning last night.

After talking for a while, Du Zhenggang pointed to a topic on the electronic whiteboard and said, "Students, this is a typical mechanical problem. I'll give you three minutes. Let's think about how to solve this problem. ”

Three minutes passed quickly, and Du Zhenggang said, "Which classmate comes up and solves this problem on the blackboard." ”

There was no sound for a long time.

"Wei Minghui, why don't you solve it." Du Zheng just looked at a white-looking boy wearing gold-rimmed glasses in the front row.

This Sven boy named Wei Minghui is a top student in the physics department.

However, after he stood up at this moment, he looked a little embarrassed and said, "Professor Du, I won't." ”

Du Zhenggang's eyes flashed with a touch of disappointment, and then said lightly: "Sit down." ”

Then Du Zhenggang looked around the entire lecture hall, and finally his eyes fell on Lin Xi.

After Du Zhenggang hesitated for a few seconds, he walked off the podium unhurriedly and came to Lin Xi's side.

"Lin Xi, you can solve the problem just now" Du Zhenggang looked condescendingly at Lin Xi lying on the table, and said in a low and loud voice.

A few seconds passed, and Lin Xi didn't react.

Du Zhenggang frowned and reached out to pat Lin Xi's shoulder.

"Looking for death" Lin Xi suddenly opened his eyes, grabbed Du Zhenggang's wrist like lightning, and twisted it back.

Du Zhenggang was shocked and painful, and while jumping to his feet in a hurry, he screamed in a voice like a rooster crowing: "It's broken, let go, let go." ”

The whole classroom burst into laughter, and it was the first time they had seen Professor Du, who was called "cold face", show such a cute side.

Lin Xi woke up from her dream, she immediately let go, stood up, and said with a sincere face: "Professor Du, I'm sorry. I didn't mean to."

Du Zhenggang put on a straight face and said in a deep voice: "Have you seen the question on the whiteboard?" If you can figure it out, you can go back to sleep.

If you can't solve it, I'll deduct your credits. ”

Everyone's eyes turned to Lin Xi, some sympathetic, some gloating, but more of them were watching the show.

Almost everyone decided that Lin Xi couldn't solve this problem that even a scholar couldn't solve.

In people's consciousness, the more beautiful the girl, the less motivated she is to study. A school flower like Lin Xi naturally belongs to the most unmotivated type. Otherwise, she wouldn't have fallen asleep in class.

Lin Xi did not go to the podium, but stood in the last row of the lecture hall, looking at the electronic whiteboard at the front from afar, only to see that there was a question on it.

The font on the whiteboard is a little small, but she has good eyesight. From a distance, you can see it clearly.

After reading the question, Lin Xi said without thinking: "The above situation will occur when the velocity is equal to zero and the angular velocity is greater than zero. ”

Du Zhenggang couldn't hide the surprise on his face: "Are you sure?" ”

Lin Xi said without hesitation: "Sure." ”

"Well, your answer is correct."

The eyes of the classmates looking at Lin Xi became subtle, Lin Xi is a scumbag who often sleeps in class, how can she see the answer to such a complicated question at a glance, it can't be that she is right?

Lin Xi was just about to sit down, and Du Zhenggang suddenly asked her another question.

Lin Xi wanted to remind Professor Du that he had said that as long as she answered the questions on the whiteboard, she could continue to sleep, but instead thought that she was rude to Professor Du first, and Professor Du wanted to make things difficult for her a little more, which was understandable, so she answered Professor Du's questions seriously.

Du Zhenggang's eyes were no longer surprised, but surprised.

In addition to the surprise, Du Zhenggang asked several questions, and one was more tricky than the other, and even the latter few were seriously "out of line", of course, this was for other students. For Lin Xi, these questions are fundamental.

In addition to being a student, she also has an identity as a scientific researcher, if she doesn't even know these most basic theories, how can she engage in scientific research.

"Let's talk about the effects of natural forces on time and space." Du Zhenggang looked at Lin Xi.

This question is one of the issues that Lin Xi is very interested in.

In fact, for several years, she and her research team have been studying the effects of force on space and time.

However, as her research deepened, the mysteries in her mind grew.

But she thought that maybe in the future she would fully understand the relationship between the forces of nature and time and space.

But now is clearly not the time to answer this question.

So Lin Xi smiled and said, "Professor Du, have you forgotten your other students?" ”

A trace of annoyance flashed in Du Zhenggang's eyes, but he didn't know if it was because of the question just now, or because he had delayed the time in class.

Anyway, he didn't say anything more, only coughed lightly, and walked towards the podium.

And the classmates who were in class with Lin Xi looked at her at this time, as if they were looking at monsters.

········

At noon, in the noisy Banyan canteen.

Lin Xi, Tang Taiping, and Lin Han sat together for lunch as usual.

Lin Xi and the two have known each other for many years from junior high school to the present, and to some extent, the three of them can be called an iron triangle.

"Today's fish-flavored eggplant is good, isn't it, Xixi?" Tang Taiping said and looked at Lin Xi across the table, but suddenly noticed that the four boys were walking towards their table menacingly.

The one at the head was tall, with large, dark eyes shining with a fierce light.

Tang Taiping immediately recognized this person as Han Yuguang, the number one school bully of Rong University.

Half a month ago, Han Yuguang was hospitalized by Lin Xi for forcibly pulling Lin Xi to KTV. Unexpectedly, this guy had just been discharged from the hospital and came to Lin Xi again, and Tang Taiping whispered with some concern: "Xixi, Han Yuguang is here." ”

Lin Xi buried his head in eating, and he didn't even lift his eyelids.

Lin Han, who was sitting next to Lin Xi, frowned and looked at Han Yuguang, who had already come over, and the other three young men dressed as gangsters.

"Isn't this Lin Xiaohua, how can you come to the cafeteria to eat in person?" Han Yuguang stood opposite Lin Xi and said with a smile.

Lin Xi slowly raised his head and looked at Han Yuguang with a smile: "Yo, isn't this Han Xiaoba, the recovery is quite fast, why do you want me to help you move your muscles and bones?" ”

"Don't use your muscles, I've heard people say that your skills are very good, or let's find a hotel, you can help me"

syllable

Before Han Yuguang finished speaking, Lin Han suddenly put down his chopsticks, stood up, and looked at Han Yuguang with a calm gaze.

The first floor of the cafeteria suddenly fell silent, and many students looked at this side with a lively look.

Although Han Yuguang knew that Lin Han was the president of the martial arts club, he didn't take Lin Han's little white face in his eyes. Lin Han's family background, he knows best.

"Lin Han, I advise you to be nosy, Lin Xiaohua will also play with you, how can she really fall in love with a little white face like you who has no money and no power?" Han Yuguang said casually.