No doubt.

Lin Bei's words were sonorous, and he landed soundly, from beginning to end in one go, without a trace of stagnation.

It is as if it has been silently recited thousands of times a long time ago, and it is familiar with the road, and it has formed a kind of physical instinct.

Instinctively navigate to find high ground, instinctively answer math problems.

There is no difference between the two.

Everyone: "......"

Suddenly, the class was instantly quiet, and the needle drop could be heard, obviously suppressed by Lin Bei.

what？？

What the hell is going on here?

Obviously a student of water, the existence of the tail of the class crane, has repeatedly made math problems?

And I don't even use chalk, it doesn't seem to need to be calculated, and I answer it directly dictated in seconds, an amazing batch?

Is this a moral decay, or a distortion of human nature, or is it the collective madness of the people?

It took ten seconds for everyone to come back to their senses.

Then someone said tremblingly, "That teacher, Lin ...... Is Lin Bei's answer correct? ”

"It's so fast, it can't be a nonsense, right?"

"Unless the world is crazy, I don't believe that he can do such a difficult math problem right!"

"That's right, I don't believe it if I kill ......"

Most of the people present shook their heads frantically.

Even Zhang San, Li Si, Wang Teng and Zhao Dali didn't have the slightest confidence in Lin Bei's answer.

It's not that they want to belittle Lin Bei.

It's that their own family members know each other's details.

Although Lin Bei has been reading very seriously in the past two days.

But the so-called seriousness is a crazy flip book, ten lines at a glance, can this be useful?

I got the first question right.

It can be said that Lin Bei is lucky, but if this second question is done correctly, it is not a matter of good luck.

Unless the sun comes out of the west, a certain foot wins the Heaven and Earth Cup, and the monk has lice on his head, otherwise it will never be possible.

But......

They didn't think it was possible.

But Yang Juntian, Lu Ren and Chu Bufan and many other top students, but their faces changed again and again in an instant.

Again, that's the same sentence.

None of them have yet to make this question.

But looking at Lin Bei's extraordinarily confident appearance, the bad premonition in their hearts rose again.

"No, he's doing the right thing again, right?"

"Impossible, impossible, impossible."

"We haven't even started to solve the problem, and we haven't even found the idea, so how can he be so fast."

"If this can be done correctly, doesn't that mean that his mathematical strength is far above us?"

Yang Juntian wanted to convince himself secretly and forcibly suppress the uneasiness in his heart.

Merely......

The reaction of mathematics teacher Yu Huatian made them fall into an ice cave in an instant, as if the sky was falling.

That's ......

Although Yu Huatian did not admit the correctness of Lin Bei's answer, his serious face was full of surprise.

This meaning is also self-evident.

Lin Bei's answer, of course, is right.

It's not even just right, it's very clear and the standard answer is pretty straightforward.

Gee!

This is absolutely amazing!!

If it was Zeng Xi, the first student in class 4, who did the question, Yu Huatian would definitely not have such a surprised expression.

After all, with Zeng Xi's strength, it will not be very difficult to make this question, and now there is a high probability that it will be done.

But here's the problem......

Now it's Lin Bei who is doing the question!

used to learn water, but he actually became a scholar in seconds?

This...... Is it possible?

If he hadn't seen it with his own eyes, and the topic was written by his own hands, he probably wouldn't have believed it, just like the people below.

But now, I have to believe it.

Getting one question right may be luck, and getting two questions right is never luck, but the strength of Chiguoguo.

Not to mention......

Lin Bei did not simply say the answer, but explained the entire problem-solving process clearly.

Well, the perfect kind.

If he was very distrustful of Lin Bei before, he thought that the 150 points of Lin Bei's test paper should be plagiarized from others.

So now......

He has completely believed that Lin Bei is not plagiarism.

Just because Lin Bei can quickly answer two questions on the blackboard in seconds, it is enough to prove that his mathematical strength is not ordinary.

Maybe it's true.

Lin Bei really studied hard in private.

It's just that he, who is a teacher, didn't find out, and habitually looked at people with inherent thinking.

That......

He misunderstood Lin Bei and blamed Lin Bei.

But this is not the time to say that.

He asked two questions in a row, and they were answered in seconds by Lin Bei.

Although it proves that Lin Bei is powerful, his face is also hot, and his face is a little unbearable.

"Lin Bei, that's good, let's have another question."

Yu Huatian praised Lin Bei very succinctly, and didn't say anything else, just rolled up his sleeves and did it.

"Dada......"

That speed is not fast.

It's like a Gatling fire, without stopping.

Originally, as long as he did two of the three questions correctly, it proved that Lin Bei had worked hard, and the 150 points were his own doing, and the test should be over.

But now.

Yu Huatian couldn't stop.

He wanted to see how strong this Lin Bei's strength was, and see if he could get the third question right.

Saw......

【x(e^x-a)-2l

x+2l

2-2≥0。 】

[Find the range of values of a.] 】

Well!

This is the third question from Yu Huatian, which is the kind of solution that is almost achieved overnight.

At first glance, this question is very simple.

With only two lines, the complexity of the argument is not as complex as the previous two multiple-choice questions, and it is easy to make it.

But......

That's really just the first glance.

In fact.

This question is far more difficult than the previous two questions.

Don't look at the question and do very little, but to do it, you don't have to have extremely high strength, that is, it is a pipe dream.

Even the finale question of yesterday's paper, in front of this one, can only be willing to be a little brother.

It is no exaggeration to say.

In the previous two multiple-choice questions, although Yu Huatian considered Lin Bei's components, he was not too out of line.

Either be decent, or dig a little hole.

Although it is difficult for ordinary people, and it is also a little difficult for ordinary students like Yang Juntian, but for top students like Zeng Xi, it is just like that.

But this third question is different.

Except for Zeng Xi's crooked head, he picked up the pen and paper and began to write, as if he had some ideas.

All the top scholars, including Yang Juntian, Lu Ren and Chu Bufan, frowned instantly.

Some questions that seem simple are often the least easy.

Some questions that seem difficult and complicated are often relatively simple, and you just need to find an entry point.

And this question is the former.

I don't know how many people in the class, who see it like a monk who is like a second monk, who is confused, and his eyes are confused.

"Phew, I have a headache!!"

"It looks simple, but I don't have any ideas, I feel like I can't start, it's so uncomfortable!"

"I really don't have any ideas, it seems that I am a ruffian, but I am not as good as a scholar."

"It's a shame."

"Anyway, the teacher won't deliberately embarrass us, right?"

"Oh, no!"

"The teacher didn't deliberately embarrass us, but embarrassed Lin Bei, and this question obviously increased the difficulty."

"I don't believe he can do it."

"If he can really do it, I will wash my hair upside down, go to the toilet, drink toilet water, and just have a dragon."

"If he can really make it, I'll lick all the urine pools in the toilet, I Du Huize said."

"I eat a whole praying mantis with a smile on my face."

"I'm fencing three hundred rounds in the playground."

"I Dance the Crab Dance ...... Black Silk"