"Yang Jie, wake up!"

At this time, Yang Jie vaguely heard a boy's voice ringing in his ears, these voices sounded familiar to him but a little strange, as if these people's voices seemed to be the voice of his high school classmate Zhang Yujie.

Aren't you still in the research lab of Huatai Chip Technology Company developing a new generation of mobile terminal processor chips?

Maybe I'm too tired!

Yang Jie has not been out of the gate of Huatai Central Research Institute for a month, hungry to eat the box lunch brought by his colleagues from the canteen, tired to sleep on the inflatable mattress in the corner of the office, in order to complete the instruction debugging of the final stage of the design of the Ziguang 985 chip, the whole team led by him brought the wolf nature of Huatai to the extreme.

After three consecutive days and three nights of unclosed battles, this purple 985 processor chip completed the final debugging, and Yang Jie couldn't stay up and fell asleep.

Could it be that I have crossed over like the protagonists in those online novels?

Yang Jie couldn't help but complain in his heart, he felt that someone had stabbed him with his fingers, exclaimed, and suddenly opened his eyes and stood up!

When he saw that many immature-looking students in the classroom were looking at him in surprise, many of them were familiar faces in his memory, weren't these all high school classmates?

Then he was on the podium, a middle-aged man, wearing a gray tunic, with four pockets with a little broken edges, a white thread, a Chinese face, and a pair of thick deep myopia glasses on the bridge of his nose, who was not his high school homeroom teacher Xu Zhiguo!

At this time, Xu Zhiguo was glaring at him with an iron face.

Yang Jie rubbed his face and wiped the saliva from the corner of his mouth, everything was so real-

Have you really been reborn again?

"Hey, buddy, don't be stunned, Mr. Xu wants you to answer the question. Zhang Yujie, who was sitting next to him, said to Yang Jie at this time.

"What day is today?" Yang Jie asked subconsciously.

"You're sleepy, it's Friday, April 16th. Zhang Yujie whispered, his eyes were also bloodshot.

It turned out that he was reborn back to 95 when he was a sophomore in high school, and he remembered that he and Zhang Yujie and other classmates watched the "Silkworm Transformation" videotape for almost one night in the video hall last night.

"You can't answer, can you?" Xu Zhiguo glared at Yang Jie angrily, "I dozed off in class, you give me a penalty stand outside the classroom and wake up!"

Many students with good grades in the classroom snickered, Yang Jie's academic performance was basically at the bottom of the class, and not many classmates could afford him.

Xu Zhiguo wants to let the class he lead be a top student class, and he has always been harsh about students with poor academic performance like Yang Jie.

Yang Jie looked at a math problem written by Xu Zhiguo on the blackboard, which was the math problem of the second year of high school, and he smiled in his heart: Just kidding, in his previous life, he was the chief scientist of Huatai Company and the chief designer of the mobile terminal processor, how could such a simple math problem be difficult to please!

"Teacher Xu, I not only know how to do this math problem, but I have also learned all the math courses in high school. Yang Jie said.

The classroom exploded all at once—

This Yang Jie is stupid, he actually said such a thing! Many classmates also looked like they were laughing.

Xu Zhiguo decided in his heart that Yang Jie was deliberately making trouble, and his hands trembled a little with anger, "Okay, if you can't do this math problem, I'll call your dad to come over, and you won't have to attend classes in my class in the future!"

"My dad is busy right now, so don't bother calling him. ”

Yang Jie strode onto the podium at this time, picked up the chalk and began to solve the problem, the chalk squeaked on the blackboard, and in less than a minute, he solved the function problem of this problem.

After writing, Yang Jie looked at Xu Zhiguo and many of his classmates with a smile, "Actually, there is a simpler way to solve this problem, and the idea of solving the problem is like this......"

Yang Jie was also interested and wrote a method of solving the problem, but this solution idea has not appeared in domestic textbooks.

Xu Zhiguo's eyes widened when he saw the solution idea he wrote: He has never heard of this solution idea as a math teacher, so it can't be made up by this kid, right?

The students below were also completely confused, and the solution method written by Yang Jie was like reading a book from heaven in their eyes.

"Teacher Xu, do you think my answer is correct?" Yang Jie said to Xu Zhiguo with a smile.

"You made up this idea yourself, right?" Xu Zhiguo said, pushing the glasses on the bridge of his nose.

If the teacher is interested, you can take a look at a book called "The Art of Functions" written by Professor Olson of Berkeley University in the United States, the content is not profound, but this book is very detailed about the essence of functions - the single-value correspondence of elements between sets, I suggest you can look for it from the library, which will be very helpful for you to teach students to learn functions in the future. ”

"......" Xu Zhiguo looked at Yang Jie in front of him as if he had seen a monster: "Who knows if you are talking nonsense, didn't you say that you have mastered all the math content in high school? Then you come to the office after class, I will produce a good paper and test you well, if you fail the test, I still have to call your parents over, you go down!"

"Okay, teacher. Yang Jie smiled and walked back to his seat, and the classmates all looked at him in disbelief.

"Dude, are you honestly like the protagonist in the TV series, and suddenly got the hang of it?" Zhang Yujie said to Yang Jie with an excited face.

"You're envious, aren't you?"

"Damn, it can't be true, right?" Zhang Yujie's eyes widened.

Xu Zhiguo coughed and looked over here, Zhang Yujie suddenly pretended to be serious about it.

At this time, the bell rang for the end of class.

Yang Jie also stood up and followed Xu Zhiguo out of the classroom, and the class suddenly exploded.

"Why is this Yang Jie so powerful all of a sudden, I can't understand what he said. ”

"He's a blind cat who ran into a dead mouse, what's the big deal, wait for Mr. Xu to take the test, he will be exposed. ”

Dong Jian, the class leader, snorted coldly and said that his grades were the top students in the class, and his academic performance could be ranked first or second in the school every time.

"If Yang Jie can pass the exam, I will invite him to lunch for a week. ”

"Yes, yes, the squad leader is right!"

The classmates in the class were all coaxed, and no one believed that Yang Jie could pass Teacher Xu's exam.

Yang Jie followed Xu Zhiguo to the teachers' office, and many teachers were talking inside at this time.

"Teacher Xu, this student was caught deserting in class? ”

A tall and thin male teacher sitting diagonally opposite said that he was Gong Aoping, the head teacher of Class 106, and he was usually very close to Xu Zhiguo, Yang Jie's grades were very poor before, and he was called to the office many times to talk, he also knew him, and now he can't help but say weird things about yin and yang.

Xu Zhiguo didn't make a sound, and took out the math exam paper from the table, which was the test question he prepared for the midterm exam, and the difficulty of the question was medium to high, and even top students could barely finish it.

"Yang Jie, this set of papers, give you an hour and a half, if you don't do well, don't blame me for calling your dad directly. ”

"Teacher Xu, don't worry, it just so happens that the teachers are also here, why don't you bring the midterm exam papers of several other subjects, and I will finish answering them together." It just so happens that I also want to use this to prove my academic performance and ask you for a few days off. ”

The reason why Yang Jie has to do the test papers in such a high-profile way is to prove to these teachers that even if he rests for a few days, he will not delay the results that Teacher Xu values most.

"You still have to do it all, how much time do you think you have wasted? This paper is an hour and a half, counting a few other courses, you can't finish it after school in the afternoon, I don't have time to waste it with you here!" Xu Zhiguo sneered.

Joke, Xu Zhiguo thinks that it will take more than half an hour to do these test questions by himself, because knowing that the idea of solving the problem is one thing, and the process of calculation also takes time.