It's good to tease the teacher

set of numbers.

The students below have already taken out their mobile phones and started to memorize them. No matter what, there is no harm in memorizing the teacher's phone number, and a group of children who have not been in high school for too long must listen to the teacher's words.Zhang Chen was no exception, but she lost slowly one by one, and then heavily typed the word Wang Xi.

Wang Xi on the podium has already started to give a lecture, but Zhang Chen below is not as absorbed in this class as he listened to.Roland, who was sitting next to Zhang Chen, always felt that Zhang Chen was a little dazed in this class, and it took him a long time to react when he touched her.

"Ah? Why did you meet me?" Zhang Chen turned his head slightly to look at Roland with a puzzled expression, then suddenly became serious, and taught, "Listen to the class carefully, why are you erratic in class?"

Roland rolled his eyes fiercely at Zhang Chen's quick face-changing behavior.I didn't want to say anything anymore, turned my head, opened the book and listened to the class carefully.

In fact, Zhang Chen felt awkward and uncomfortable.I always feel cheated. Although Wang Xi didn't do anything, it's hard for that baby-faced person to be a university teacher, right?Being deceived by that innocent face, even if Wang Xi is innocent, Zhang Chen will mistake her for Wang Xi.

The class has started, so naturally Zhang Chen won't be so stupid that he can't get through his class, at most he feels awkward, yes, he feels awkward.It's class, just listen carefully.Wang Xi's voice is very nice, clear and loud, and Zhang Chen thinks that Wang Xi can be a voice actor even if he is not a teacher.

"We know that the reciprocal of infinity is infinitesimal, and the reciprocal of infinitesimal is infinity." Wang Xi said while writing on the board.

"Teacher, this is wrong." Zhang Chen's voice made everyone who was listening to the class seriously, or half asleep.They were all dumbfounded.The chalk in Wang Xi's hand also stopped.

"Classmate, what's your problem?" Wang Xi turned around and looked at Zhang Chen. Oh, by the way, although Wang Xi has a baby face, her height should not be underestimated.Zhang Chen felt inexplicably oppressed, so he also stood up.

"Infinitesimal also includes 0, but the reciprocal of 0 does not exist." After Zhang Chen stood up, he felt that he was about the same height, and the pressure was gone.

Wang Xi looked at Zhang Chen for a few seconds, then thought for a while, "Yes, this classmate is right. What is this classmate's name?"

Zhang Chen slowly spat out his name and student number.

"Zhang Chen? Well, this classmate Zhang Chen will do it first. It seems that many students here didn't pay attention to the class. I said such an obvious mistake, and only this female classmate brought it up. This is very good. In the future, everyone It should also be like this, if there is a problem, it must be raised." Wang Xi said, supporting the podium with his hands.

Zhang Chen sat down and listened to what Wang Xi said with raised eyebrows.Zhang Chen didn't think that Wang Xi's level was really bad. Either she was just transferred and couldn't control the nervousness of the students in the class, so she made a mistake, or it was just like what she said.

After listening to Wang Xi, the students below took a 10-minute break between classes.Zhang Chen watched Wang Xi go out for a while, and didn't come back until the end of class.Zhang Chen glanced at the class and found that some were sleeping and some were playing with mobile phones.This is probably due to being suppressed by the teacher last semester, and Wang Xi's baby face is not deterrent, and Wang Xi is still a new teacher who is not very old.Didn't there be a saying "If you don't perish in silence, explode in silence", it is obvious that one-third of the students chose "explode".

In this regard, Wang Xi has not said anything, and lectures as usual.When get out of class was about to end, Wang Xi put down the chalk, her baby face had a serious expression, Zhang Chen felt that it was against the law and wanted to laugh, just thinking about it. "I have taught classes for three years. I never rely on roll call for the attendance rate of students. So if you think you will, you can come to the class or not. I will not embarrass you with the usual scores. For example, if you pass the exam More than [-] points, I will give the same amount as usual. As for whether you want to listen or not, that is your own business. It doesn’t matter if you don’t come to my class, sleep, or even play with your mobile phone. .But don’t talk, and disturb my lectures and classmates.”

After Wang Xi finished speaking, get out of class was almost over. Wang Xi patted the book, and then patted his hands to remove the dust.Then he took the book and left.

After Zhang Chen packed his schoolbag and looked up again, he couldn't see Wang Xi's figure.Zhang Chen already knew a lot about university teachers from the high school teachers, and the voice of the high school head teacher seemed to still echo in his ears, "Only the high school teachers will chase you after your ass, and the university teachers will shoot you after class." Slap your ass and leave." At this moment, the head teacher's words felt inexplicably favorable.

It's noon, so it's more important to grab the cafeteria as soon as possible, other things are useless.

Chapter 3

After Wang Xi said those words, the number of people who came to the second class was indeed much less.But it doesn't matter much to Wang Xi, as there are few people who come, and if she doesn't talk, she can not interrupt her train of thought in the lecture.

Zhang Chen and the others still sat in the middle and front seats, and they could easily grab their favorite seats without a lot of people.

Wang Xi put down the things, "This class, there are quite a few students who come here, but what I want to say is that since the students here are here, don't come in vain. They want to talk, play with mobile phones and sleep. The dormitory is even more comfortable. I hope you will be able to listen to the class well.”

After speaking, Wang Xi started today's lecture.

"Teacher, this question seems to be wrong." Zhang Chen sat on the chair and raised his hand.

Wang Xi turned her head and tossed her shoulder-length hair back, which made people think that she was ready to shoot a shampoo commercial.

Wang Xi searched for the source of the voice, "Student Zhang Chen, what's the problem?"

Zhang Chen likes Wang Xi the most at this time, with a baby face and a serious expression on his face.It made Zhang Chen feel that the other party was talking to her as if he was suppressing his breath, although in fact it was probably not the case.

"This question should be..." Zhang Chen stood up and began to speak.

During this period, Wang Xi listened carefully without any interruption.

"Student, although your serious attitude towards study is very good and deserves to be commended, but let me tell you, what you said is wrong, it should be like this..." After finishing speaking, Wang Xi asked Zhang Chen to sit down.

For this kind of oolong incident, if it was someone else, it would have been a laughing stock.But the rest of the students in the class thought: Oh, the new teacher made a mistake again?Whether it is reliable or not.Then propped his head with one hand, tilted his head to watch Zhang Chen stand up, and listened to Zhang Chen's explanation.

Then he continued to turn his head to look at what the teacher said, and for the teacher's affirmation that Zhang Chen was wrong, he couldn't react for the time being.Huh?Was Xueba wrong?This fact made them feel a little rejoiced, a little secretly happy, and more confused, because what Xueba said was quite reasonable.

After listening to Wang Xi's answer, oh oh, so it is like this.Well, take notes and attend lectures.

"Teacher, what you said is wrong."

……

"Teacher, it's better to do this."

……

So the students in this class spent time in listening to lectures, taking notes and turning their heads.After listening to the class, I only remember that when I was seriously listening to the class, Xueba popped up a few words from time to time.After one class, I just feel so melancholy.You all understand why you bully us who don't understand!Turning the head and turning the neck is sore, Chi Guoguo is very knowledgeable.Wow, I'm going to find my roommates who didn't go to class, and complain to them about Chi Guoguo's behavior.

Then there were a lot of people in the next class, and Wang Xi couldn't figure it out. "I don't know what you guys think, but since you're here, take good care of the lectures. If you don't listen to the lectures, don't blame me for being rude." Wang Xi said with a smile. Cute, although the word cute doesn't seem to fit the teacher's style.

However, in fact, many people came here with the intention of watching the excitement. They heard that Xueba and the teacher looked very fun, so they came to have a look.Talking and sleeping or something, anyway, you can talk enough and sleep enough in the dormitory.But once such a thing as excitement is missed, it will be gone, okay?And it's also the excitement of the single goddess Xueba and the new baby-faced Yujieyin teacher.

During the first class, Zhang Chen was listening to the class quietly, without any movement.Not to mention the other classmates, even the roommates sitting next to her couldn't help wondering if this guy was being honest or couldn't find fault with the teacher.Sure enough, the teacher should have been too nervous when he was new, and then he didn't perform well. Xueba correctly pointed out that it should be.

This is a good thing, but the students quit, just want to be angry, what about the excitement?He squinted at his roommate.The roommates who were looked at either looked up at the ceiling and pretended not to see anything.Either shoot your eyes at classmate Zhang Chen, Xueba, quickly prove that I am not lying.

After the class break, Wang Xi walked in on high heels, "Okay, enough rest, those who are sleeping, those who are playing with mobile phones, and those who are talking, stop now and go to class."

Wang Xi opened the book, "We just talked about it, um, here it is."

……

"Teacher, it's wrong to say that." The students finally saw Xueba speak up, and the sleepiness disappeared immediately, and their eyes lit up.The students below glanced at each other, "Look, I didn't lie to you." "You really didn't lie to me." Then he immediately corrected his attitude and turned to look at Zhang Chen, for fear of missing something.

Wang Xi looked up, "Student Zhang Chen, tell me."

The students deeply felt that, teacher, this tone of voice turned out to be the one they are used to, the bully is so scary.Listen to their conversation quietly, clean your ears, put on your glasses if you are short-sighted, and resolutely don't let go of an expression.

"L'Hopitus cannot be used directly to find the limit of the sequence, because the sequence is an integral function, and each isolated point is discontinuous