When Li Zheng was obsessed with solving problems.

He didn't know that Jiang Qinghua had been scratching his head frantically for a long time.

Sun, nuclear fusion, nuclear reaction equations?

Jiang Qinghua, it's messed up.

The more chaotic it is, the more it will be confused by the terrifying face.

The more chaotic it is, the harder it is to find simple and pure solutions.

I don't know how long after the chaos, Jiang Qinghua aimed at the second question.

This is a small ball hitting a rod, a classic problem for calculating kinetic energy and velocity.

This one is good, there is a routine.

The formula for the conservation of kinetic energy and momentum is right.

However, he was wrong.

He didn't know that in the physics competition.

The more scary the question, the simpler it is.

The more mentally retarded things like balls and rods, the more difficult it is.

For example, artificial satellite orbits, solar nuclear reactions and the like, although the questions are magnificent, but it is only a test of your application substitution ability, as long as the physical environment and simple knowledge are strung together, you can always easily give an answer.

On the contrary, the small balls and rods are the hellish things that will assess you to the point of horror-

Where does the ball hit the pole?

What kind of twist does the rod produce?

When you twist to the limit, how do you shake it back?

What state will it end up in?

By the way, there is also a small ball tied to each end of this pole.

This complex situation, the step-by-step analysis of calculus is basically a foregone conclusion.

Jiang Qinghua undoubtedly fell deeper and deeper in this process.

He began to doubt himself deeply.

Why do I study for so long, but I can't even understand the mentally handicapped problem of small ball and thin rod?

In the pain, Jiang Qinghua's stomach rumbled uncontrollably, and he couldn't bear it.

In fact, this question has really been difficult for Li Zheng for a long time, far longer than solar nuclear fusion.

It's just that the calculation steps are too complicated, and it's much more difficult than the math exam.

As for Lin Yujing......

She used a peculiar method of angular velocity and angular momentum to solve the problem, completely bypassing process analysis and derivative calculations, and had already begun to work on the third problem.

These three situations also fully reflect the style of the three people.

Li Zheng: A→B→C→C...... →C

Lin Yujing: A→ (strange thinking) → Z

Jiang Qinghua: A→?→B→→A?→C?→...... →???

......

The war is raging inside the office, but it's very laid-back outside the office.

On the way back from Tao Feifei's fetching water, she happened to meet Yu Hong, who had returned from an interview.

Although there is not much intersection on weekdays, in the face of the competition, in the face of how to cultivate Li Zheng and Lin Yujing, Yu Hong became unprecedentedly enthusiastic, and pulled Tao Feifei and did not let him go.

"Xiao Tao, don't underestimate Li Zheng. ”

"The rate of progress of this man is terrifying. ”

"And he's all-round, there's no intellectual blind spot for progress. ”

"The Shi Yang who won Li Zheng a few points in the end, but he has been soaking in the chemistry laboratory since he was a child, and he is a chemistry genius who has met once in many years. ”

As a result, Li Zheng's theoretical score was still higher than his? If it weren't for the limited experimental opportunities, the results would not be easy to say. ”

"You just listen to me, just give Li Zhengshu a highest goal, and just rush forward. ”

Tao Feifei nodded again and again, but was also a little unimpressed.

In her eyes, the gap between the chemistry competition and the physics competition is roughly equivalent to the gap between the Asian Games and the Olympic Games.

The core of the gap lies in the fact that chemistry has a lot of hard knowledge points, while physics is more talented.

This leads to those real demons, who have no energy or interest in participating in chemistry competitions, and only physics competitions can provide them with a stage to display their talents.

The core reason why Li Zhenghua got such terrifying results is his own terrifying learning intensity.

When it comes to thinking talent, he is certainly not bad.

It's just that what he is going to face is a large group of demons at the level of Lin Yujing.

Of course, Tao Feifei is not easy to face Yu Hongkong, at most she only dares to be weird.

"Then Teacher Yu, let me ask for advice. Tao Feifei rubbed the kettle and asked unhurriedly, "Look, in the preliminary round of the competition, Li Zheng and Lin Yujing were second and seventh, about 5 points apart, right?"

"Yes, I didn't expect Li Zheng to be taller. Yu Hong nodded again and again, "You must know that Shi Yang was five points higher than Li Zheng at that time, and after only a month of hard work, Li Zheng's national final results were fully surpassed." ”

"Yes, yes...... But I want to ask......" Tao Feifei pursed her lips and said, "Just take the preliminary round of Huajing as the time node, if Li Zheng's energy to learn Huajing is 100, then how much is Lin Yujing?"

"......" Yu Hong's eyebrows tightened, and after thinking for a long time, he raised his hand and gestured a 2.

"20?" asked Tao Feifei.

“2。 ”

“......”

“......”

The two men fell into a long silence.

"Actually, I've already said this 2 more conservatively...... I feel like she plays basketball more hard. Yu Hong shook his head and sighed, "No way, I've never seen Lin Yujing to this level in my life." ”

"As soon as you say that, I have higher expectations for Lin Yujing...... Tao Feifei gasped and said, "You must know that in the face of the physics competition, Lin Yujing's dedication ...... It's 100. ”

"Mom......" Yu Hong opened his mouth wide in shock, "Then you...... Can you still teach?"

"Hey!" Tao Feifei patted her thigh in pain, "It's too hard, she has occasional problems...... I couldn't understand what was being asked...... I suspect that my graduate student is fake......"

"It's good she didn't ask me about chemistry. Yu Hong spent the rest of his life after the catastrophe, and he snorted at the office, "What are they doing now?"

"Doing the semi-final questions is equivalent to the preliminary round of your competition. Tao Feifei whispered, "The two of them are more energetic." ”

"Normal, chemistry is occasionally tough. Yu Hong unconsciously became expectant, "Is it a real question? Do you know the score line?"

"I know the real questions. Tao Feifei shook her head and said, "But I can probably guess the outcome." ”

"Huh. Yu Hong's eyes narrowed, and he patted Tao Feifei gently, "You are still too young." ”

“......”

"Come back to me when the results come out. ”

"Teacher Yu, who is too late, this set of questions has to be ...... at 7 o'clock in the evening"

"It's okay, I'll wait for you. Yu Hong also took out his mobile phone and swallowed his saliva, "I haven't eaten barbecue for a long time." ”

"......" Tao Feifei realized that Yu Hong was going to eat something terrible at school again.

At this time, Yu Hong had already fiddled with his mobile phone and went away: "Then I'll order a portion for 6 people, there are two young men." ”

"You...... Broke the ......"

......

Tao Feifei entered the office and saw that the three of them were trying to solve the problem, and they didn't want to peep.

But I couldn't help it.

As a physics teacher, she is confident in her judgment.

This kind of self-confidence is not something you naturally have, but is honed by comparing predictions with results.

Li Zheng 35, Jiang Qinghua 14, Lin Yujing 75.

This is what she predicted, the best level of performance of the three.

It's been more than 20 minutes now, and I can probably see some clues.

Tao Feifei quietly slipped behind Lin Yujing.

Rarely, Lin Yujing didn't notice her voyeurism, and was still bowing her head and checking carefully.

Tao Feifei roughly swept the answer sheet, and saw the beautiful answers to the first three questions, so she only nodded steadily.

is worthy of Lin Yujing, probably the fifth question will feel the difficulty.

Then, Tao Feifei slipped behind Jiang Qinghua again.

Look at his white answer sheets, and messy and sparse scratch paper.

Tao Feifei smiled but did not speak.

It's still too reluctant to do the rematch questions.

Finally, look at Li Zheng.

With just one glance, Tao Feifei panicked.

The scratch paper is almost full......

Even the answer sheet was written a lot.

But only the first two questions give complete answers, and the later questions only have some trivial steps, and they are still far from the answers.

What kind of routine is this, is it a dirty sub-question demon?

The so-called dirty points mean that you can't do it, but you can write a lot of specious things, and if you hit any point, you can get a point or two.

Tao Feifei couldn't help but raise her glasses and look carefully.

She found that Li Zheng did not write the knowledge points hard, and the steps given on the answer sheet were fine.

It's just that he has empty ideas, but he doesn't know how to calculate them.

Even so, Tao Feifei was very satisfied.

Li Zheng is much more agile than she imagined, and her thinking is very open, but now she is just poor in skills, and there is still a great chance of saving one after training.

With such a comfortable mood, Tao Feifei sat down in front of the computer again and planned what homework to leave for today.

Relaxed and freehand, she didn't know that Li Zheng had fallen into a desperate situation.

At first glance, Li Zheng seems to sweep the questions quickly, and he has done so much in 20 minutes.

In fact, Li Zheng has already accelerated for 1 minute, which is equivalent to doing two hours of questions.

These trivial steps on the answer sheet were almost everything he could answer.

Li Zheng has already estimated his score, and this volume has the most, more than 30 points.

Faced with this result, Li Zheng could only bow his head and sigh.

is worthy of Mr. Tao, this estimate is really accurate......

He could have continued to accelerate.

But that doesn't make any sense.

I just can't do it.

The reason is none other than the math.

In fact, Li Zheng has ideas for solving 70% of the questions on the paper.

But when I really did it, I was quickly stuck in the throat by the math calculations.

Some people say that in terms of the amount of thinking, mathematics competitions are 6 times higher than physics.

In terms of the amount of computation, physics is 6 times more than mathematics.

Now it seems that that the pressure is probably right.

At this time, Li Zheng understood the dispute between the Sword Sect and the Qi Sect.

If the physical idea is internal strength, then the mathematical level is swordsmanship.

I am a little monk of Xuzhu, just a fledgling, and I know a hairy swordsmanship.

But I also encountered a terrifying master like Tianshan Tong Lin Yujing.

Even if it is accelerated for another 50 hours...... I can't kill her.

This time, I'm afraid I'm really going to be trampled under her feet and rub frantically for a while......

Just when Li Zheng was desperate, Jiang Qinghua suddenly raised his hand aggrievedly.

Teacher Tao ...... Would like to go to the toilet......"

In fact, he has been feeling a little uncomfortable in his abdomen since he saw these questions, and he has been holding it for a long time.

Tao Feifei didn't turn his head and said, "Go ahead." ”

"That'...... I've got my phone here. Jiang Qinghua got up and slapped his mobile phone on the table.

"No, I don't. Tao Feifei waved his hand and said, "I'm sure you won't be looking for an answer." ”

"It's better to stay, I'm afraid I can't help it. Jiang Qinghua nodded, and then turned around to leave.

"Wait!" Li Zheng suddenly grabbed Jiang Qinghua's arm, "Is it?"

"......" Jiang Qinghua was stunned for a while, Mu Mu nodded, "Yes......"

"That's right, get a companion. Li Zheng also got up, put down his mobile phone, and said to Tao Feifei at the same time, "We are together, supervise each other, and never peek at the answer." ”

"Alright...... Let's go......" Tao Feifei hurriedly waved his hand.

"Hmm......" Lin Yujing also looked sideways at the mobile phone on the table alertly, obviously still a little suspicious.

"Oh?" Li Zheng grabbed Jiang Qinghua and asked Lin Yujing, "If you can't believe us, we can hold back." ”

Jiang Qinghua clutched his stomach with a bitter expression: "Big brother...... Don't take me with you, I'm not going to be able to hold it back......"

Lin Yujing looked at the appearance of the two, and had no choice but to grit her teeth and turn her head: "Go and come back quickly, cheating is a puppy." ”

"Good. Li Zheng pulled Jiang Qinghua out of the office.

As soon as he went out, Jiang Qinghua quickened his pace and went straight to the men's toilet on the third floor.

Li Zheng's steps were a little disjointed, and as a thoughtful and experienced person, he couldn't help asking, "Did you bring paper?"

"It's not ......" Jiang Qinghua was already panting and trotting up, "No, no, no...... Did you bring it?"

"I didn't bring it either. Li Zheng's eyes lit up and said, "Then I'll go back to get the paper, you can go first." ”

"Done. Jiang Qinghua had already disregarded his image, strode towards the toilet, and kept saying, "But don't forget me, I didn't bring a mobile phone with me." ”

"No, you work hard first, and I'll come when I go. ”

After Li Zheng replied, he quickly turned around and rushed to the corridor, ran all the way downstairs, rushed into the library, and went straight to the most unpopular textbook bookcase without even saying hello.

There is only one goal - "Advanced Mathematics".

There is no doubt that the most common sword book in the world is only "Advanced Mathematics".

In Li Zheng's original plan, he also had to take half an hour to eat high math in the morning and evening.

But wars always come unprepared.

Suddenly encountered Tianshan Tong's grandmother, and there was only one way to die.

Fortunately, a Jiang Qinghua was killed in the middle, creating an opportunity to, which could drag on for 20 minutes.

It's like being chased down a cliff by a peerless master, and skillfully entering the secret realm of practice.

This 20-minute opportunity cannot be delayed for a second.

All for sword practice!

Li Zheng flipped out the Tongji version of the big green book of high mathematics that no one cared about, and then went straight to the door, and said angrily to the old man: "Please ask the teacher to borrow me some toilet paper." ”

"......" the old man looked at the green booklet, a little dazed, "You can borrow toilet paper...... It is also possible to borrow advanced math books...... But at the same time...... I don't understand it. ”

"The situation is urgent, I'll go back and explain. ”

"Okay...... "The old man took out a roll of toilet paper and pushed it to Li Zheng, "I dare to speculate...... I've been in school for so many years, and it's the first time I've seen someone who can combine the two, admiration, admiration. ”

"Thank you, teacher. Li Zheng picked up the toilet paper and rushed out, and ran into the corridor before he remembered to turn around and shouted, "Don't tell Lin Yujing!"

“......”

......

Men's restroom on the third floor.

Jiang Qinghua had only squatted for a minute before he heard Li Zheng's rough panting and the sound of the compartment being opened.

Immediately after, a roll of toilet paper was handed from under the partition.

"Thank you, thank you!" Jiang Qinghua took the toilet paper, very grateful.

Think about it carefully, why is the toilet partition always designed at the bottom to leave a certain distance?

This distance is just enough for your hand to pass through, just higher than the roll of toilet paper.

It's a great way to think about it.

This design is so humane.

Jiang Qinghua felt that Li Zheng had already squatted and opened the high math book.

Ou Xingzhuo and Wu Shu mentioned before that before the national decision, the requirements for mathematics, in addition to high school mathematics knowledge, are basically enough to just gnaw on the upper volume of high mathematics.

Now, there's 15 minutes left in the time.

At full speed, you can study for 28 hours.

I don't know if it's enough, learn it first.

True quantum speed reading, begun.

Functions, limits, differentials, and integrals, gnaw through them one by one.

It's a pity that there is no pen and paper and no environment for doing questions at the moment, and Li Zheng can only forcibly do mental arithmetic, which increases in difficulty sharply.

After squatting like this for "an hour", Li Zheng barely understood the first few pages of the function, and only felt that it was difficult to move forward.

And the learning environment is extremely harsh.

Let's not talk about the taste, the key is that the current squatting posture is very unfavorable for blood circulation.

High Mathematics ...... Sure enough, it's not easy to gnaw, and ten minutes is not enough.

Just when Li Zheng was a little discouraged, a prompt suddenly popped up.

[Continuous learning of mathematics detected for 1 hour]

[Enchanted state is enabled, and the efficiency of math learning is increased by 50%]

Li Zheng's eyes widened, and his confidence was greatly boosted.

The theoretical study time is equivalent to more than 40 hours.

It's good to cultivate demons, it's good to cultivate demons.

Next door, Jiang Qinghua can always hear the sound of flipping books, and he only reads it when Li Zheng smokes a comic and, after all, it is usually like this.

Minutes and seconds passed.

Jiang Qinghua was just in a daze.

Li Zheng has already entered the "wonderful" non-stop super cool learning stage.

Without it, calculus is really wonderful.

It can even be said that calculus is the industrial revolution in mathematics, the steam engine in industry.

In Li Zheng's own understanding.

Mathematics before calculus, mathematics is a ruler, classic and beautiful, but it can only measure macroscopic and cannot bend things.

The advent of calculus gave the ruler a radian, deepened the precision of the ruler into the microcosm, and expanded exponentially for human science.

Appreciating the mystery, Li Zheng couldn't help but shout frequently even if he was squatting in the toilet.

After 18 minutes, Li Zheng finally closed the book.

I feel like I've finished my freshman year.

"Wonderful......" he sighed one last time.

"Ahem......" Jiang Qinghua coughed outside, "Is it over......?"

"Hmm, who are you?" Li Zheng asked subconsciously.

"You...... Are you alright......"

Li Zheng hurriedly shook his head.

Because he had been immersed in learning for so long, he had forgotten what he was doing before.

Looking around, he remembered that he was.

Together with Jiang Qinghua.

Why are you here?

By the way, it's to get through that roll......

There is also a hand blade Lin Yujing.

Thinking of this, Li Zheng pretended to wipe a few times and got up to flush the water.

This time I really learned too much, and my legs were numb.

When he stuffed Gao Shu into his clothes, opened the door and went out of the toilet, he saw Jiang Qinghua.

There was a feeling that I hadn't seen for many days.

One is gone, like every three autumns.

It's all the same toileting.

Someone was in a daze.

Some have entered the sanctuary of mathematics.

Because they were still in the "test", the two didn't say anything more, so they returned to the teaching and research group and continued to answer the questions.

At this time, Li Zheng looked at the calculation process that was stuck with him.

I couldn't help but laugh.

Math problems, all math problems.

Dozens of hours of high math study really made Li Zheng have a qualitative change.

But when it comes to the question, it's not so smooth.

First, his high math learning is more just mastering the basic tools, and there is not much practical consolidation.

Second, the amount of mathematical calculus in the physics semi-final is extremely large, and many questions only look at the process of solving the problem, and even do not see that this is a physics problem at all.

Especially the optics questions, no matter how you look at them, they are all geometry questions.

The good news is that these questions, although complex, are mainly focused on the amount of calculations, and there is not much to innovate in the calculation ideas.

If the calculation doesn't go well, don't be afraid.

Count the fucking 10 hours, and it's not going well.

Physics, mathematics, and swords are one.

Are you still afraid that you won't be able to kill her?