"Fortunately, there are classes in the morning, and it's really cool to have no classes in the afternoon." Tang Ning said with a happy face.

"It's not easy to have a high math class, Professor Shi will ask someone to go up and solve the problem, and I clicked on the student number last time." Lu Wen said in dismantling the stage.

"It's okay, I went in the morning." Tang Ning said for the rest of his life.

"Whom?" Zhou Zhou gloated.

"To me, hey." Yan Xin said helplessly.

"Hahahaha, come on, brother. I'm waiting for your performance. "Tang Ning fell into the stone road.

"This teacher is really responsible. At the end of the class, there will be a question test, and if you can't answer it, you will have to perform a program in three minutes. Lu Wen sighed.

", it'll be you soon." Yan Xin said angrily.

"I've performed. Hahahaha," Downing laughed. "It's your brother this time, have you thought about what kind of performance?"

"Acting as a question. What else can you perform?" Yan Xin said.

"Yes, please start your show." Zhou Zhou coaxed. "It's all from the same dormitory, we don't know you yet, and we play on our phones in class like us."

When class began, Professor Shi stepped on the bell and began to enter the classroom.

"Stand up, hello teacher."

"Hello students. Today we are going to talk about new content, the previous talk is all about the basics, and now it is going to increase the difficulty, I hope you will listen carefully. Professor Shi stood on the podium and counted unhurriedly.

The next group of people began to take out their mobile phones and do their own things, only the front row began to open their laptops and start recording knowledge.

Yan Xin opened the textbook and began to listen carefully. The energy of the gem subtly improves Yan Xin's physical fitness, and Yan Xin only thinks that he is enlightened.

Yan Xin was pleasantly surprised to find that what Professor Shi explained had already been mastered.

Yesterday I saw the clouds in the fog, and today's teacher's explanation cleared the clouds and saw the blue sky.

Yan Xin listened to it like a fascination, and the person next to him also played with his mobile phone and forgot about himself.

People who are attentive will feel that time flies, whether it is playing with their mobile phones or studying, but the things they get are different.

Seeing that the time was almost up, Professor Shi came up with a few questions to check the quality of the class.

"Okay, now a few questions for our classmates to do, what time did you point last time, class leader?"

"Teacher, number 22. Okay, now I have students 23, 24, and 25 to do it. ”

Yan Xin heard the teacher shouting on the 23rd, and thought to himself that it was finally me.

"Yan Xin go up, wait for your performance." The roommate coaxed.

Yan Xin thought about this group of bad friends, walked to the blackboard, and began to examine the question carefully, and after reading the question, the solution method immediately popped out of his head.

Without saying a word, I picked up the pen and began to write on the blackboard. Professor Shi's eyes swept over a few students who were doing the question, and if they didn't, they wouldn't watch it, and they wanted to think about what program to perform.

I saw the other two put down the pen in their hands, made a bitter face, and began to perform the show, making the audience laugh.

Professor Shi turned his head to look at Yan Xin's solution steps, found that there was no problem, and nodded. I thought there were still people in the class who were willing to learn.

"Teacher, I'm done." Yan Xin put down the pen in his hand and said.

"What's your name?" Professor Shi picked up the pen in his hand.

"Say something new."

"Yes, it's not a big problem, plus credits." Professor Shi picked up the roster and ticked a box behind Yan Xin. "Let's talk about the solution."

"Because f(x) is continuous at x=0... Yan Xin began to explain according to his own ideas.

Professor Shi kept nodding when he heard the key, "Okay, okay." Students should have a correct attitude, the test is not only to check the study, but also your attitude towards things. Professor Shi began to preach.

After class, "I said that I would become a salted fish together, but you secretly turned over." Tang Ning said depressedly.

"Let me perform on stage and then laugh at me?" Yan Xin said with a smile.

"Big guy, it's up to you to do your high math homework." Lu Wen began to hug his thighs.

"Hot water for me." Yan Xin took advantage of the fire to rob the road.

"Big guy, okay." Lu Wen said.