Hearing Han Shilan's mocking voice, Yang Feng smiled faintly, not caring, and then said: "Actually, these are very simple, take a look at these auxiliary lines I drew. "
Han Shilan glanced at Yang Feng, her face still cold. When she saw the auxiliary lines on the image on the draft paper, her eyebrows furrowed and a hint of surprise flashed across her beautiful eyes.
That's right, after drawing these auxiliary lines, the idea of the whole question came out. Han Shilan blinked her eyes and looked at Yang Feng, saying: "This... Do you really know the answer to this question? "
"certainly. "Yang Feng nodded, holding the water-based pen in his hand, and explained to Han Shilan while writing: "The first problem is very simple. It is easy to find a breakthrough based on the connection of the auxiliary lines, and use some geometric properties of the ellipse... "
Yang Feng kept writing down the solutions to the questions one by one in his hands. The process was clear, smooth and well-organized. Some of the solutions had never been taught by the teacher before. Han Shilan, who was standing beside him, leaned over and listened to Yang Feng's explanations carefully. She felt like she was just an elementary school student and couldn't even get a word in.
The two little heads were touching each other in such a close distance, but neither of them noticed.
Han Shilan was very surprised. She didn't expect Yang Feng to be able to solve this problem. Could it be that he had deliberately not written it down before? Or did he just learn it after listening to the get out of class just now?
"Well, do you understand? "Yang Feng turned his head to look at Han Shilan and found that their noses were almost touching. Suddenly, both of them jumped away as if frightened.
Han Shilan's pretty and cute face flushed bright red, her big eyes stared at Yang Feng without blinking, and she said with her red lips slightly opened:
"Yang Feng, how did you get this question? "
"Well… "Yang Feng was somewhat stunned. He couldn't say that there was a gangster in his body... No, it's a full-time system.
Then, he smiled faintly and said, "Actually, I already knew how to do these things, but I just didn't want to do them? "
"Don't want to do it? "Han Shilan frowned slightly and murmured, is he the kind of student who likes to pretend to be a pig and eat the tiger?
I was so worried about him before, why did he fall? It turns out he was hiding his strength. No wonder he was so good in the first year of high school, but became so bad in the third year. It turns out he was hiding his strength. Thinking about how I had been worrying about his studies, it seems that all my worries were in vain. I suddenly felt angry, and then confused.
Maybe he just wanted to show off in front of me.
"See if there's anything you don't understand. I can teach you one-on-one. You'll make a lot of money. "Yang Feng put down the pen in his hand and said nonchalantly.
"snort… I don't understand! Who needs your teaching? I see for myself. "Han Shilan snorted angrily, pouted her lips, turned her head to look at the records on the draft paper, and ignored Yang Feng.
"It's weird, I taught her so patiently, but she's still angry? Women are really strange creatures. It seems that the saying that women's hearts are as deep as the sea is true. "Yang Feng's mouth twitched fiercely, and he murmured to himself.
At this time, Teacher Dong, who was on the podium, raised his lips like an old fox and said, "Students, time is up, who of you will come up to answer the questions, or do you want to add an extra homework as usual? "
All of a sudden, all the students below were in an uproar.
"No, Teacher Dong, please let us live. We do homework all day and stay up until midnight. What if we suddenly die at home one day? "
"Yes, Mr. Dong, you are the most handsome, so don't give me any more homework today... "
"Teacher Dong, this question is so difficult, you are obviously trying to trick us... "
"...… "
Han Shilan looked at the students around her who were all in a state of panic, sighed slightly, and said to her deskmate: "Yang Feng, go up and solve this problem, otherwise you will have to do more homework. "
"I don't want to go up, you go up, I've already written the answers on your draft paper, you can just copy them. "Yang Feng waved his hand and said that he didn't want to show off in front of these classmates. What's the point of showing off in front of these classmates?
"Didi, student occupation detected, automatically activated. "
"Ding Dong———"
"Task: Make your classmates surprised by your pretense. "
"Task reward: a career scroll (can be replaced)"
"Mission failed: None. "
"I didn't want to show off, but you asked me to... "
Yang Feng covered his head and thought to himself.
"Didi——The system detects the situation of surrounding objects and then generates tasks according to the current situation. "
It's really nothing anyway, isn't it just showing off? It's not that difficult for me now.
Yang Feng stood up and said to Teacher Dong: "I will do this question. "
As soon as the words fell, the whole class fell into deathly silence.
"Well, come up, classmate. "Teacher Dong smiled and said.
Yang Feng raised the corners of his mouth slightly, picked up the chalk on the podium, began to draw auxiliary lines on the questions, and then began to solve them one by one.
"I dare say he will definitely write nonsense... "
"Does he still think this is a question for freshman year in high school? hehe… If he could write that, I would eat my desk mate. "
"Damn it, what is this idiot pretending to be? Expect to make a fool of yourself. "
"...… "
Han Shilan was different from them. Yang Feng had just explained the whole thing to her. A slight smile appeared on her lips, and she murmured, "Didn't you say you couldn't go up? How come you went up again? "
When she saw Yang Feng solving problems seriously on the blackboard, she seemed to be back in her first year of high school, watching him appear on the podium again and again to answer questions.
At that time, many girls were flirting with him.
Yang Feng took the chalk in his hand and wrote from the top of the blackboard to the bottom row, with a confident smile on his handsome face.
Teacher Dong, who was standing by, pushed his glasses and was a little surprised. He didn't expect that this student could actually solve the problem. Not only that, the method he used was even simpler than the one he had solved before, and it was also well-organized and clear.
The male and female students below looked at each other and talked a lot.
"he… You won't really do it?! "
"Although I can't understand what the hell is written on it, I think he wrote it randomly. "
"...… "
Half of the blackboard was filled at this moment. Yang Feng put the chalk back, patted the dust off his hands, walked down the podium, returned to his seat, and glanced at Han Shilan.
Han Shilan looked at Yang Feng with her beautiful eyes and said, "How come you are so powerful? You can even write this finale question, don't tell me you are hiding your ability. "
"Well… "Yang Feng was speechless. Should he say that it was knowledge gained through the system? If I say this out loud, I'll probably be considered a psychopath.