Half an hour later, the numbers on the piece of paper written by Deng Xiuqin were already dense, and Wu Bin, who was on the side, nodded more and more frequently.

Wu Bin now understands how high the teaching level of the teacher in front of him is.

At the beginning, she would throw out a lot of knowledge that Wu Bin didn't know in one go, and then explain it at a very fast speed, and ask Wu Bin "Do you understand?" ”

After this sentence of "do you understand", he asked Wu Bin a total of three times, and then he never asked again.

Because after three times, Deng Xiuqin has almost understood Wu Bin's foundation and receptivity, and kept her explanation speed within the most suitable range for Wu Bin, which can be said to be extremely efficient teaching.

【h→0】

"So this last action is called the limit, understand?" Deng Xiuqin asked, pointing to the numbers on the paper.

"Teacher, your explanation is too 6......" Wu Bin opened his mouth and said in great surprise.

It's much faster than reading a book on his own.

"This kid is praising you." At this time, Bi Wanqing, who didn't know when he was standing behind Wu Bin, suddenly said something, probably because he was worried that Deng Xiuqin would not understand the young man's trendy words.

But Deng Xiuqin glanced at Bi Wanqing and said: "Where do you still need to explain, isn't it 666." Deng Xiuqin made a 6 gesture and shook it as she spoke, "That's what it means, right?" ”

"Hahaha, it seems that I am the only one who is out of touch with the times, I didn't understand what Wu Bin meant when he first said that I was 6." Bi Wanqing laughed.

"That's right, it's this 6,666 of 6." Wu Bin also made a gesture of six and shook it.

"Yay~"

Deng Xiuqin smiled and touched Wu Bin with her hand, and said, "Your acceptance speed is also 6." ”

"Hahaha, it seems that I don't have anything to do." Bi Wanqing said and sat back in his seat.

"Okay, I'll give you two random questions to practice." After Deng Xiuqin finished speaking, she turned the paper to the back and began to write.

"Okay, okay."

……

[Function: one-to-one correspondence]

[Limit: Domain Correspondence (Decentering Domain)]

"Do you know why you want to take it to heart?" Writing two lines of concluding sentences, Deng Xiuqin asked Wu Bin.

"Complementary?" Wu Bin thought for a while and replied.

"Clever!" Deng Xiuqin nodded appreciatively, "Function and limit are a pair of contradictions, with identity and opposition, just like a blind man touching an elephant, looking at the problem from different angles, but they are all studying the characteristics of the same object from different angles." ”

Seeing Wu Bin nodding, Deng Xiuqin continued: "You can think of functions and limits as two similar perspectives and corresponding representations, in which the limit not only makes up for the relativity of the function, but also changes the domain and maintains the correspondence of the function, which not only has the expression of relativity, but also inherits the law of correspondence. ”

"I see." Wu Bin rubbed his chin and nodded.

"You're 6." Deng Xiuqin gestured.

"Hahaha, no teacher 6, no teacher 6, you are too powerful." Wu Bin waved his hand vigorously.

Deng Xiuqin also laughed for a while, then looked at the clock on the wall, and said, "Then that's all for today, I still have the first class in the afternoon." ”

Hearing this, Wu Bin's face fell, and he said with a little reluctance: "Okay, thank you, teacher." ”

Deng Xiuqin couldn't help but laugh out loud when she looked at Wu Bin's expression, and shouted in the direction of Bi Wanqing: "Teacher Bi, I now know why you like teaching this child so much." ”

"But he's still going to compete in physics." Bi Wanqing replied.

"Hahaha, don't worry, I won't rob you of this closed disciple." After laughing, Deng Xiuqin turned her head to look at Wu Bin and said, "Then you go back to read by yourself today, and come to me tomorrow during your lunch break, and I will help you sort out your thoughts." ”

"Huh! Can I come back to you to teach me! Hearing this, Wu Bin's expression suddenly became happy again.

"yes, I'd like to see you change your face a lot." Deng Xiuqin smiled and nodded.

"Thank you, teacher!"

……

So in the next few days, with the efforts of the two excellent teachers and himself, Wu Bin's various horizontal postures about the competition can be said to have improved by leaps and bounds, that is, Xu Hao suffered every morning......

"What to do, now I feel like shaking him doesn't do anything."

Standing in front of Wu Bin's bed, Xu Hao looked at Gu Fan helplessly and said.

"I'm going to fetch a basin of water?" After Gu Fan finished speaking, he didn't know where to take out a basin.

"It's too ruthless......"

"Otherwise, what else can you do?"

"Hey, I've got a way." At this time, Xu Bo, who had just finished making his bed, suddenly jumped down, took out his mobile phone, and played a song.

"I will spend my whole life to provide for you~"

"Damn!"

"Turn it off!"

"Why do you suddenly use AOE?"

……

When the song sounded, the dormitory suddenly exploded, but Wu Bin still didn't react.

"That's an exaggeration, isn't it, this guy really just fell asleep?" Gu Fan said and stretched out his hand to probe under Wu Bin's nose, "There is still gas." ”

"Is this the highest level of a scholar...... Xu Bo sighed.

"This guy...... Oh no, this big guy studied "High Numbers" all night, can he not be mentally overdrawn. ”

"I'll want to sleep after watching that thing for a while."

"Is this called learning brain down?"

"Now is not the time to talk nonsense, okay, if we don't pull him up, we'll be late."

After Xu Hao finished speaking, he tried to drag Wu Bin up and shake him violently, but Wu Bin still didn't mean to wake up, at most he said "hum" and "hum" twice in his mouth.

"Hey, Mr. Bi is looking for you." At this time, Gu Fan suddenly shouted.

However, just when everyone wondered what he was doing, Wu Bin suddenly opened his eyes, "What!?" ”

"Gan, you're really crazy, hurry up, you're almost late." Gu Bin shook his head painfully and began to tidy up his things.

"The strong who learns is terrifying."

"If you don't go crazy, you can't live."

"Slipped."

Seeing that Gu Fan's method was really effective, the others were also confused, and then put on their school uniforms and walked out of the dormitory.

", don't sleep again, get up quickly, I said you've been working too hard lately."

Seeing that Wu Bin was about to close his eyes again, Xu Hao hurriedly dragged him up.

"It's a bit of a trance." Wu Bin opened his eyes and said.

"Why don't you take a day off? Otherwise, I don't think your body can bear it. ”

"No, no, I'll just wash my face, I'll work hard for you." Wu Bin yawned and said.

"Okay, then you hurry." After Xu Hao finished speaking, he began to organize his schoolbag, "Hey, what are you doing with your pencil case in the basin!" Get ready to paint your face! ”

After a toss, Wu Bin and the three finally came to the classroom on time.

"Lao Tie, is there any way I don't have to sleep. ’

After sitting in his seat, Wu Bin asked the system.

"Sorry, this issue is not within the scope of inquiry."

"Huh...... No, spicy chicken, system! ”