Do you understand Euclid today?

Under Teacher Zhu's death stare, Radar stood up with difficulty, quietly turned his eyes to Lin Qianshu in the back row for help, and whispered to him, "Brother Lin, how do you do this question?" He said as he spoke. The side eyes showed a begging look, and there was an aura of "I really need to be rescued" all over my body.

Over the years, Rado was the first person to ask Lin Qianshu for help with a math problem. Lin Qianshu felt it was fresh and had a sense of mission.He glanced at the topic on the blackboard, and found that he really had some ideas, so he quickly grabbed a pen and wrote a few lines in the blank space of the textbook and pushed them to Radar: "You can do the rest by pushing down. "

"Radar, why don't you come up?" On the podium, Teacher Zhu urged again, "There are already some students who are almost finished."

Radar didn't have time to think about it, so he gave Lin Qianshu a grateful look, grabbed the written textbook and ran to the podium, not forgetting to smile playfully with Teacher Zhu: "Here we come, we come, Teacher Zhu, don't worry."

When the two were handing over, Jiang Yixing had already sat down firmly in his seat again. He glanced at the blackboard, grabbed the pen with his left hand, daubed it casually on the book a few times, and then threw the pen back on the table, sneering. : "Boring question."

Lin Qianshu didn't feel bored. He felt that the thinking questions had to be at least the penultimate question in the monthly exam paper. His ability to solve such a difficult problem fully showed that his own mathematics level was not hopeless.Similarly, he felt that the only ones who could say that this question was boring were those who knew nothing about mathematics except for a mathematical genius.

Since Brother Jiang calculated the genius answer of [-] people, Lin Qianshu thought he was the latter.

Radar took the book to the podium, first copied the few lines that Lin Qianshu wrote on the book onto the blackboard, and then stared at the topic in a daze.He read the question carefully, and patiently read the copied lines several times. He always felt that something looked strange, but due to his limited IQ, he couldn't say it.

After Radar stood on the podium for a long time, the students who had finished their work couldn't sit still, and commotion gradually came from below.Teacher Zhu sighed, pinched the corners of his eyebrows and waved Radar down: "Forget it, you go down first."

Hearing what Teacher Zhu said, Da Da breathed a sigh of relief, threw away the piece of chalk in his hand, happily walked off the podium, and returned the book to Lin Qianshu: "Brother Lin, thank you for being here, Otherwise, I’m afraid I’ll even do the first three steps wrong.”

Before he finished speaking, Teacher Zhu made a big cross on the blackboard, and patted the blackboard with a bad face: "It's such a simple question, it's wrong from the first step, radar, radar, you What have you been thinking all day?" Teacher Zhu stretched out his hand and drew two horizontal lines under the two logarithmic exponents: "Who told you that these two can be added directly?"

He was clearly scolding Radar, but Lin Qianshu felt his face was burning hot, and he didn't dare to look up at Radar's expression in front of him.

Jiang Yixing, who was sitting next to him, laughed again. Lin Qianshu tasted contempt, ridicule, disdain, sarcasm and many other meanings from this short smile, which made him a little annoyed.

"The sum of the indices is really yours." Jiang Yixing said with a half-smile.

So this half-human brother is really looking down on himself!Lin Qianshu felt that being looked down upon by this younger brother had greatly insulted his IQ, so he explained violently, "I was wrong!"

Jiang Yixing didn't answer, but he told Lin Qianshu with his expression that he didn't believe what Lin Qianshu said.

"What's there to be happy about," Lin Qianshu muttered, "You can't do it either."

Jiang Yixing's ears were sharp, and when he heard Lin Qianshu's words, he immediately opened the math book he had just closed.He stretched out his index finger and clicked on the page, motioning Lin Qianshu to read for himself: "Who said I won't do it?"

Lin Qianshu went up to look and found that although Jiang Yixing's book was written, the answer was exactly the same as what Teacher Zhu said just now.

"The one who doesn't know is you," Jiang Yixing sneered again, "Could you have been playing my brother all the time?"

If he was really a movie star with superb acting skills, how could he overturn in such an ordinary math class.Lin Qianshu's mouth was so bitter that he couldn't speak, so he could only pretend he couldn't hear, and buried himself in copying Teacher Zhu's problem-solving ideas into the book.

In the second half of this class, Lin Qianshu didn't dare to desert any more. In order to prevent another incident where he was asked for help but overturned, he wrote down every knowledge point in detail, and found a lot of things that he had learned before. Vulnerabilities in some content.

After finally getting through get out of class, Lin Qianshu heaved a sigh of relief, stooped out with a book in his pocket, and slipped out of Class D's back door without saying hello.

After the radar was sprayed, she lay on her seat in a daze for the second half of the class, and turned around when she heard the bell ringing, her sight only had time to catch a corner of Lin Qianshu's flying clothes.

Radar opened his eyes wide in astonishment, and pointed to the back door: "Brother Lin, is there something urgent?"

Jiang Yixing swiped his phone, and took time out of his busy schedule to raise his head and perfunctoryly check the radar: "Yes."

What does it mean?Radar scratched his little head in confusion, and decided to wait until the next time he meets Brother Lin, and he must ask him for a WeChat account, or else he would run away and lose contact.

Lin Qianshu sprinted through the group of laughing students, and didn't remember until he reached the door of the office why he willingly went to class D to attend math class in the morning.Jiang Yizhi was the only one behind this door in the office. Thinking of this, Lin Qianshu's hand on the doorknob began to hesitate again.

After struggling again and again, hearing the preparatory bell for class rang again, Lin Qianshu adjusted his mood and pushed the door open again.

In the office, Jiang Yizhi was sitting at his desk making a set of papers.When Lin Qianshu entered the door, he raised his head and glanced at Lin Qianshu, but the pen in his hand didn't stop, and when he lowered his head again, he had already reached the result of the question.

Lin Qianshu was not blind, of course he saw Jiang Yizhi's smooth operation.He curled his lips, thinking that Jiang Yizhi probably covets the title of B-king very much, who is he acting for if he doesn't give up every minute.

"How's the class going?" After writing the answer, Jiang Yizhi put down his pen and looked up at Lin Qianshu again.

Lin Qianshu obviously wouldn't tell Jiang Yizhi that he overturned the answer he had written to Radar, and he replied evasively: "It's okay."

Jiang Yizhi nodded, without delving into the deep meaning behind the "not bad", he handed a paper to Lin Qianshu: "The last one is your favorite pizza question, which can train the progressive thinking."

I just finished the math test yesterday, and I still do the questions today?Lin Qianshu felt a "buzz", and his head hurt.He subconsciously took a step back and put on a gesture of refusal: "No, I'd better leave it to you to do it yourself. I ate a little stuffed this morning, and I like to eat hamburgers more recently. Even if I see pizza in the title, I will feel nauseous." of."

Seeing Jiang Yizhi's strange expression, Lin Qianshu immediately realized that he seemed to have said something wrong.

"What, what's wrong?" Lin Qianshu swallowed, and nervously rubbed the pad of his index finger with his thumb.

"The pizza question refers to a series of questions raised around the question stem and gradually increased in difficulty according to the same idea." Jiang Yizhi stared at Lin Qianshu firmly, speaking clearly, "It has nothing to do with the food itself."

Overturned!The alarm immediately sounded in Lin Qianshu's mind. With an awkward smile, he stretched out his hand to take the paper, touched the paper pretending to be very happy, and followed what Jiang Yizhi said just now: "Of course I know." What is the pizza question, you know, I like the pizza question the most... Am I kidding you, why are you so serious?"

Jiang Yizhi didn't speak again, but the look in his eyes made Lin Qianshu's smile a little unbearable, so he could only freeze on his face.

After a while, Jiang Yizhi looked away, and said in an understatement again: "There is a question-and-answer class in the afternoon, and I have almost finished this paper. I will give the lecture in the afternoon."

Let yourself be the main lecturer for this level of competition papers, I am afraid that if I dare to speak, the students will not dare to listen, right?Lin Qianshu heaved a sigh of relief, nodded as if he had received an amnesty, and said, "Tell me what you say, and I'll help you." At this moment, he had completely forgotten the relationship between the two deadly enemies, and only felt that there seemed to be something growing behind Jiang Yizhi's back. The huge transparent wings make him look divine and glorious.

At noon, the two had lunch together in the cafeteria as usual, and it was Jiang Yizhi who ordered the meal, and Lin Qianshu occupied the seat. Lin Qianshu noticed that the meal Jiang Yizhi called today was also very suitable for his taste, which made him eat more without knowing it I took a few mouthfuls of rice.

Passing by the supermarket after dinner, Jiang Yizhi glanced at the hamburger sign in front of the deli window, stopped suddenly, turned his head and asked Lin Qianshu, "Are you still hungry?"

Lin Qianshu was taken aback, looked at the signboard, and saw Jiang Yizhi's serious expression, only then realized that the other party was really thinking about buying him another hamburger.He quickly waved his hand and refused: "I'm full! I'm really full! I just ate two bowls of rice!"

"Oh."

It was obviously a plain voice, but Lin Qianshu could hear a bit of disappointment from it, and even began to think uneasily: Is it not good for me to reject Jiang Yizhi like this?

This feeling of guilt lasted until the afternoon question-and-answer session.

As soon as the bell rang at the end of the second class in the afternoon, Jiang Yizhi woke up Lin Qianshu who had fallen asleep while reading at the workstation, and said to him who was blushing under the pressure of the book without changing his face and heartbeat: "Pack up and get ready for class."

Lin Qianshu wiped the corners of his mouth subconsciously, stretched and stood up.He glanced at the outfit Jiang Yizhi was holding in his hand, copied an assignment, then took a competition question bank and the paper with the pizza question, put a pen in his pocket, and walked to Jiang Yizhi Side: "Okay, let's go."

Lin Qianshu took two steps. Seeing Jiang Yizhi standing still, he turned to him in confusion and asked, "Aren't you leaving?"

Jiang Yizhi turned back and took a notebook from Lin Qianshu's desk: "I forgot the roster."

Lin Qianshu, who had traveled through time, said that he didn't know there was such a process.He patted his head pretending to be stupid, and said with a chuckle: "...I mean, I fell asleep."

Now it's all sorted out.Lin Qianshu followed Jiang Yizhi out of the office, all the way to the lecture theater dedicated to math competitions.

When the two of them entered, there were already many students sitting in the classroom who were busy studying the questions. Jiang Yizhi walked to the podium and put down the textbook, and asked Lin Qianshu, "Where are you sitting?" His eyes fell on the one closest to him. On the desk, he hesitated whether to let Lin Qianshu sit here.

Lin Qianshu looked around, and caught sight of a familiar little student with blue glasses at the third table in the row by the window. He took a closer look and found that it was the one who showed him the way yesterday when he just crossed over. Guan Ming.

In a group of strangers, even if they just pass by, they have a life-threatening friendship.

"I'll sit there." Lin Qianshu heaved a sigh of relief, and casually pointed in the direction of Guan Ming, his legs had already moved there first.