"Humph!"

Shen Xiyan glanced at Lu Chen angrily, although he was still a little depressed, but he had to admit that Lu Chen's solution was many times simpler than hers, this annoying ghost really has two brushes!

However, she knew that even if she used Lu Chen's simple method, she might not be able to do the final question, because she had no idea to do her current steps. So, Shen Xiyan reluctantly asked, "Then do you know what to do with the last question?"

"The last question...... Let me guess...... You're stuck at the limit of that power function, right?" Lu Chen said with a smile.

Shen Xiyan was stunned, "How do you know?"

Lu Chen flipped through Shen Xiyan's test paper, looked at her last big question, deliberately touched his chin, and nodded, "I estimate that with your level, you should be able to do this step, which is actually quite good." ”

Shen Xiyan was stunned, "What do you mean?"

"Don't be so sensitive...... Lu Chen smiled, "I'm telling the truth...... In fact, let me tell you, Mr. Cao has not yet talked about the knowledge points to be used in this question, it is the last class before the exam, and the content he asked everyone to preview is normal for you to not. ”

"Really?" Shen Xiyan was a little depressed, is there such a cunning teacher? What is the content of the exam preparation?

"You can read the book yourself. ”

Shen Xiyan immediately opened the math book, quickly figured it out, and sighed depressedly, "Is there anything like this?"

"Who told you not to prepare!" Lu Chen said with a smile, "Listen to the teacher more in the future." ”

"Then how do you know? Have you read Teacher Cao's standard answer?" asked Shen Xiyan.

Lu Chen picked up the math book and shook it, and said with a smile: "I've read all this book, of course I know! Otherwise, why would Teacher Cao allow me not to go to class?"

The math book is still very thick, and now it has just been half a semester, Lu Chen actually said that he has finished reading the book, Shen Xiyan couldn't help but be very surprised, "You really finished reading it?"

"That's right. ”

"Do you understand?" asked Shen Xiyan.

"Of course, what's the use of reading and not understanding? Can it be called 'finishing'?" Lu Chen said with a smile.

Shen Xiyan was still a little skeptical, "How can you prove it?"

Lu Chen couldn't help but smile, "Generally, I'm not in the mood to prove such a boring thing, but if the senior class leader asks so, I still want to give you some face." Why don't you point out a few post-class questions for me to do?"

"Okay!" Shen Xiyan said, "I'll try it after class! I don't believe you've mastered it!"

Listening to the confrontation between the two, Chen Yan shook her head helplessly and said, "What is going on with the two of you? Why do you fight back and forth as soon as you meet? Isn't it good to get along peacefully?"

"That's for him!"

"That's for her!"

Lu Chen and Shen Xiyan muttered almost at the same time.

……

After handing out the papers, Cao Jiuzhang began to explain the questions of the midterm exam.

If you only listen to him, these topics are indeed not difficult, as long as you use the right knowledge points, it is really easy to catch, let alone passing, even eighty or ninety points are not dreams. But for the hard-pressed students, this is simply impossible, if everyone can do advanced mathematics so easily, wouldn't everyone be a genius?

After the math class, Shen Xiyan immediately changed seats with Chen Yan, she turned a large chapter back to the math book, pointed to a difficult question and said, "You can do this problem." ”

Lu Chen couldn't help but smile, "Xiyan, I just thought of a question, I can't prove it to you by doing these topics." ”

"Why?" Shen Xiyan raised the corners of his mouth, "Aren't you afraid?"

Lu Chen shrugged his shoulders and said with a smile: "I made the question, but after I made it, how do you know if what I did was right or wrong?"

"......" Shen Xiyan was stunned, this is indeed a question, there is no answer to the post-class questions in the high math book. She looked at Lu Chen, and when she saw his stinky face, she suddenly wanted to measure his hateful face with the soles of her shoes.

Shen Xiyan thought about it for a while, and said unconvinced: "Then you wait, wait for me to watch it for a few days, and then test you when I understand it." ”

"Okay......" Lu Chen couldn't help but laugh, "Actually, you just need to buy this teaching reference book, and the teaching reference book has a standard answer." ”

"Hmph!" Shen Xiyan glanced at him, "I'm going to see it myself!"

"Lu Chen, Lu Chen......" Chen Yan came to the spirit, "Is there really an answer to the teaching reference book?"

"Yes, you want to buy it?"

"yes, that's how easy it is to do your homework. ”

"Swallow!" Shen Xiyan pulled Chen Yan, "Don't buy that kind of book, if you always copy homework, what will you do with the final exam? In case the invigilation is very strict, you can't copy it even if you sit behind Lu Chen!"

"Oh...... ......Yes, too," Chen Yan nodded, "Then forget it...... I have to study hard in the second half of the semester, or I'll really fail the course!"

Seeing that his roommate was not "bad" by Lu Chen, Shen Xiyan secretly breathed a sigh of relief, and glared at Lu Chen angrily, "You know that you have a bad idea! Hmph! You wait, when I finish reading the rest of the book, I will test you immediately to see if you are bragging!"

"Okay......" Lu Chen's mind suddenly moved, and he laughed.

"What are you laughing at?" asked Shen Xiyan.

"Xiyan, let me ask you, if I was bragging just now, but I took advantage of the time when you were learning from the future, I would also learn from the future, wouldn't that be fine? You still can't prove that I'm not bragging! Hahaha, do you think about it?"

After Lu Chen finished speaking, he left with a smile.

"You...... You...... Damn!" Shen Xi stomped his feet angrily, "This nasty ghost, his mouth is really unpumping!"

"Xiyan, don't you believe Lu Chen? I don't think he's bragging. Chen Yan said.

"I just can't see his smug appearance......" Shen Xiyan clenched his teeth, "Look at how hateful his stinky fart looks?"

Chen Yan thought for a moment and shook her head, "Don't be evil...... I think he's pretty handsome! You're just prejudiced against him!"

"Nymphomaniac! I won't tell you!" Shen Xiyan depressedly packed up his books and left the classroom.

……

At this time, in a small mountain village in the northeast, heavy snow was whistling down with a bitter northwest wind, and the heavy snow covered the entire lead-colored sky, and the snow on the ground was no longer ankle-high.

Heavy snow fell in the Northeast, and there were local blizzards. The filming location of He Yinger's crew unfortunately happened to be in this "local area". According to the plan, they should go to a hotel near the airport in the afternoon and then take a flight back to Haidong tomorrow morning. But a heavy snowfall cast a shadow over their plans.

(End of chapter)