Demon Development System

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When Li Zheng was obsessed with solving problems.

He did not know that Jiang Qinghua had been scratching his head frantically for a long time.

sun? Nuclear fusion? Nuclear reaction equation?

Jiang Qinghua, chaos.

The more chaotic, the more bewildered by the horror.

The more chaotic, the harder it is to find simple and pure problem-solving ideas.

After not knowing how long it was, Jiang Qinghua aimed at the second question.

This is a classic problem with a small ball hitting a rod, calculating kinetic energy and speed.

This is good, there are routines.

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

However, he was wrong.

He didn't know that in the physics competition.

The more horrible the question, the simpler it is.

The more mentally retarded things like small **** and poles, the harder it is.

For example, satellite orbit, solar nuclear reaction and the like, although the topic is very magnificent, but it is only a test of your application substitution ability, as long as the physical environment and simple knowledge are stringed together, you can always easily give the answer .

On the contrary, the ghosts such as small **** and poles, the assessment of you is as fine as horrible-

Where did the ball hit the pole?

What kind of twist will the rod produce?

After turning to the limit, how will it shake back?

Where will it end up?

By the way, a small ball was tied to each end of this pole.

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

In this process, Jiang Qinghua undoubtedly got deeper and deeper.

He began to doubt himself deeply.

Why have you been studying for so long, but you can't even understand the mental retardation problem of small ball and thin rod?

Amidst the pain, Jiang Qinghua's stomach grunted, and some could not bear it.

In fact, this question is really difficult for Li Zheng for a long time, much longer than the solar nuclear fusion.

Because of the calculation steps, it is too complicated and much more difficult than the math test.

As for Lin Yuejing...

She used a peculiar method of angular velocity and angular momentum to solve the problem, completely bypassing the process analysis and derivative calculation, and has already started to do the third problem.

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

Li Zheng: A→B→C→C……→C

Lin Yuejing: A→(Strange Idea)→Z

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

...

The war in the office was fierce, but it was leisurely outside the office.

Tao Feifei met Yu Hong, who returned from the interview, on the way back to the water.

Although there are not many intersections on weekdays, in the face of competition and how to cultivate Li Zheng and Lin Yuejing, Yu Hong is enthusiastically upset and pulling Tao Feifei will not let him go.

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

"This person's rate of progress is terrifying."

"And he is all-round and has no progress in knowledge dead ends."

"In the end, Shi Yang, who won Li Zheng a few points, has been in the chemistry laboratory since childhood, a genius of chemistry that has been encountered for many years."

"As a result, Li Zheng's theoretical score is still higher than him? If the experimental opportunities are limited, the result is not easy to say."

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

Tao Feifei nodded again and again, but some disagreed.

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 is that chemistry has a lot of hard-to-eat knowledge, and physics is more talented.

This leads to those real monsters who have no energy or interest in chemical competitions at all, and only physical competitions can provide them with a stage to display their talents.

The core reason for Li Zhenghua's such terrible results is his own terrifying learning intensity.

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

Only, he will face, but a large group of Lin Yujing level evildoers.

Of course, Tao Feifei is not good to face Yu Honggang directly.

"Teacher Yu, let me ask." Tao Feifei rubbed the kettle and asked slowly, "Look, in the preliminary competition, Li Zheng and Lin Yuejing are second and seventh, probably worse 5 points, right?"

"Yes, I didn't expect Li Zheng to be higher." Yu Hong nodded again and again. "You know, Shi Yang was five points higher than Li Zheng at the time, but after a month of effort, Li Zheng's national finals completed a comprehensive Overtake."

"Is it... but I want to ask..." Tao Feifei said, "Taking the preliminary competition as the time node. If Li Zheng devoted 100% of his energy to learning chemical competition, what is Lin Yujing? "

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

"20?" Tao Feifei asked.

"2."

"..."

"..."

The two fell into a long silence.

"Actually, this 2, I have said it is more conservative... I feel that she is more attentive in playing basketball." Yu Hong shook his head and sighed, "No way, I have never seen Lin Yujing to this degree in my life."

"If you say this, I have a higher expectation for Lin Yuejing..." Tao Feifei gasped and said, "You know, Lin Yujing's investment in the face of the physics competition... is 100 ."

"Mother..." Yu Hong opened his mouth in shock, "Then... can you still teach?"

"Hey!" Tao Feifei photographed her thigh painfully. "It's too difficult. She occasionally has problems... I don't even understand what I'm asking... I suspect that my graduate student is fake..."

"Fortunately, she didn't ask me a chemistry question." After Yu Hong's robbery, he pouted at the office. "What are they doing now?"

"Doing the rematch question is equivalent to your preliminary competition." Tao Feifei whispered, "The two are more upbeat."

"Normal, chemistry is occasionally hard." Yu Hong became expectant. "Is it true? Do you know the score line?"

"The real question, I know it all." Tao Feifei shook his head. "But I can probably guess the result."

"Hehe." Yu Hong narrowed his eyes and patted Tao Feifei gently. "You are still too young."

"..."

"If the results come out, talk to me."

"Mr. Yu, who is too late, this set of questions must be more than 7 o'clock in the evening..."

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

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

At this time, Yu Hong had been playing with his mobile phone and went away: "Then I have ordered a 6-person meal. Anyway, there are two big and small guys."

"You... spent money..."

...

Tao Feifei entered the office and saw that all three were working hard to solve the problem.

But still can't help it.

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

This self-confidence is not naturally possessed, but is tempered in the comparison of predictions and results.

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

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

It has been more than twenty minutes now, and I can probably see some clues.

Tao Feifei slipped quietly behind Lin Yuejing.

Rarely, Lin Yuejing didn't find her voyeur, and still bowed her head to check carefully.

Tao Feifei swiped the answer sheet and saw the beautiful answers to the first three questions, only nodding steadily.

Worthy of it is Lin Yuejing, probably the fifth question will only feel the difficulty.

Then, Tao Feifei slipped behind Jiang Qinghua.

Looked at his blank answer sheet and messy sparse scratch paper.

Tao Feifei laughed and said nothing.

It was really too reluctant to engage in rematch questions.

Finally, look at Li Zheng.

With one glance, Tao Feifei panicked.

The draft paper is almost full...

I even wrote a lot of answer sheets.

But only the first two questions give complete answers. The following questions only have some trivial steps, which are still far from the answers.

What kind of routine is this?

The so-called dirty points means that you obviously won't do it, but you can write a lot of plausible things. If you hit a point, you can get a point or two.

Tao Feifei couldn't help raising his glasses and looked carefully.

She found that Li Zheng was not writing hard knowledge, and step eight given on the answer sheet was no problem.

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

Even so, Tao Feifei was very satisfied.

Li Zheng is much smarter than she imagined, and she has a very broad mindset. Now she is only poor in skills and training. The chance of saving one is still great.

With such a comfortable mood, Tao Feifei sat down in front of the computer again, planning what homework she would like to stay today.

Freehand, she did not know that Li Zheng was in a desperate situation.

At first glance, Li Zheng seems to be sweeping the subject quickly, and so many come out in 20 minutes.

In fact, Li Zheng has already opened a full 1 minute acceleration, which is equivalent to madly doing the question for two hours.

These trivial steps on the answer sheet are almost everything he can answer.

Li Zheng has already estimated the score by himself. This roll noodle has the most and the most, which is more than 30 points.

Faced with this result, Li Zheng only bowed his head and sighed bitterly.

Worthy of being Tao, this estimate is really accurate...

He could have continued to accelerate.

But that doesn't make any sense.

Just can't do it.

There is no reason for it, it is all in mathematics.

In fact, Li Zheng has 70% of the questions on the roll.

But really doing it, soon got stuck in the throat by mathematical calculations.

Some people say that the mathematical competition is six times that of physics.

Regarding the amount of calculation, physics is 6 times that of mathematics.

It now appears that the forced statement is probably correct.

At this time, Li Zheng only understood the dispute between Jianzong and Qizong.

If the physical idea is internal work, then the level of mathematics is swordsmanship.

I was a little monk who was just a bamboo monk, and I was a young man who knew how to make a sword.

He also encountered a horrible master like Tian Shan Tong Lam Lin Jingjing.

Even if it speeds up for another 50 hours...it won't do to her.

This time, I was afraid that she would really step on her feet and rub it frantically for a while...

When Li Zheng was desperate, Jiang Qinghua suddenly succumbed and raised his hand.

"Teacher Tao...want to go to the toilet..."

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

Tao Feifei turned his head and said, "Go."

"Then... my phone is here." Jiang Qinghua got up and photographed the phone on the table.

"No," Tao Feifei waved. "I believe you won't find an answer."

"Stay still, I'm afraid I can't help it." Jiang Qinghua nodded, and then turned to go.

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

"..." After Jiang Qinghua passed by for a while, Mumu nodded, "Yes..."

"Exactly, get a companion." Li Zheng also got up and put down his phone, and said to Tao Feifei, "We are companions, supervise each other, and never peek at the answer."

"Okay...Go ahead..." Taufie waved in a hurry.

"Hmm..." Lin Yuejing looked sideways at the cell phone on the table, apparently still a little skeptical.

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

Jiang Qinghua clutched her stomach and looked miserable: "Brother... Don't take me with me, I'm not good at holding..."

Lin Yuejing looked at the two, and had no choice but to gritt his teeth and turn his head: "Go back quickly, cheating is a puppy."

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

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

Li Zheng's pace is a little free. As a thoughtful and experienced person, he can't help but ask: "Did you bring paper?"

"No..." Jiang Qinghua trot with gasping, "No, no, no... Did you bring it?"

"I didn't bring it," Li Zheng said with bright eyes. "Then I'll go back and get the paper, you go first."

"Finished." Jiang Qinghua had already ignored the image and took a big step toward the toilet, saying without a word, "Don't forget me, I didn't bring my mobile phone."

"No, you work hard first, and I will come when I go."

After Li Zheng spoke back, he hurried back to the corridor and ran down the stairs all the way. He rushed into the library, and even without greeting, he went straight to the most popular textbook bookcase.

There is only one goal-"Advanced Mathematics".

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

In Li Zheng's original plan, he had to spend half an hour to eat high numbers sooner or later.

But war always comes unprepared.

Suddenly encountering Tianshan Tongmu, there is only one dead road on the front.

Fortunately, Jiang Qinghua was killed in the middle, creating an opportunity for shit, which can be dragged for 20 minutes.

It's like being chased down by a peerless master and falling into the secret realm of practice.

This 20-minute chance can't be delayed for one second.

Practice the sword! All used to practice swords!

Li Zheng turned out the Tongji version of the large green paper high-numbered book that no one wanted, and then went straight to the doorway, and said to the old man angrily: "Teacher to lend me some toilet paper."

"..." The old man looked at the green book and was a little dazed. "It's okay to borrow toilet paper...it's okay to borrow a high-number book...but at the same time to borrow both...I can't understand it."

"The situation is urgent, I will go back and explain."

"Okay..." The old man then turned over a roll of toilet paper and pushed it to Li Zheng. "I'm daring to speculate... Are you going to look at high numbers while shit? I have been in school for so many years, or The first time I saw someone who could combine the two, admire, admire."

"Thank you teacher." Li Zheng picked up the toilet paper and rushed out, ran into the corridor before thinking of shouting back, "Don't tell Lin Jingjing!"

"..."

...

Three-story men's toilet.

Jiang Qinghua squatted for a minute, and then heard Li Zheng's rough gasps and the sound of the compartment being opened.

Immediately afterwards, a roll of toilet paper was passed under the partition.

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

If you think about it carefully, why does the design of the toilet always leave a certain distance below?

This distance, just enough to let the hand pass, is just higher than the toilet paper roll.

Careful thinking.

This design is so human.

Between Jiang Qinghua's feelings, Li Zheng had squatted and opened the high-number book.

Earlier, Ou Xingzhuo and Wu Shu mentioned that before the national competition, the requirements for mathematics, in addition to high school mathematics knowledge, is basically enough to just nibble the high number.

Now, there is still 15 minutes of **** time.

At full speed, you can study for 28 hours.

I don’t know if it’s enough.

The real quantum speed reading begins.

Function, limit, differentiation, integration, nibbling past one by one.

It is a pity that there is no pen and paper and a question-making environment at the moment, and Li Zheng only has to do mental calculations, and the difficulty increases sharply.

After just squatting for "an hour", Li Zheng barely understood the first few pages of the function, only to find it difficult.

And the learning environment is extremely harsh.

Not to mention the taste, the key is that the squat position is very bad for blood circulation.

A high number... Sure enough, it is not easy to eat, and it is not enough to say more than ten minutes.

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

[Detected to continue learning mathematics for 1 hour]

【Enchanting state is turned on, math learning efficiency is increased by 50%】

Li Zheng's eyes glared, his confidence rose.

The theoretical learning time is equivalent to a breakthrough of 40 hours.

Cultivation is good. Cultivation is good.

Next door, Jiang Qinghua can always hear the sound of turning the book, and he can only watch it when Li Zhengshun pulled a comic book shit, after all, this is usually the case.

Time passed by one minute and one second.

Jiang Qinghua was simply in a daze.

Li Zheng has entered a "miao" 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, that is, the steam engine in industry.

In Li Zheng's own understanding.

Mathematics before calculus, mathematics is a straightedge, classic and aesthetically pleasing, but it can only measure macroscopic things without bending.

The emergence of calculus has given this ruler a radius, and it has also deepened the ruler's accuracy to the microscopic world, and has expanded exponentially for human science.

Appreciating the mystery, even if Li Zheng was squatting in the toilet, she couldn't help shouting at Miao.

After 18 minutes, Li Zheng finally closed the book.

I feel like I have finished my freshman year.

"Miao..." he sighed for the last time.

"Cough..." Jiang Qinghua coughed outside. "Are you finished?"

"Huh? Who are you?" Li Zheng asked subconsciously.

"are you OK……"

Li Zheng shook his head quickly.

Because he was immersed in studying for too long, he forgot some of what he was doing.

Looking around, he remembered that he was shit.

With Jiang Qinghua.

Why are you here?

By the way, it is to make the paper...

There is also Lin Jianjing.

Thinking of this, Li Zheng wiped a few pretends and got up to flush.

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

When he stuffed the high number into his clothes, he opened the door and went out to the toilet, and saw Jiang Qinghua.

There was even a feeling of missing for many days.

It's gone for a while, like every third autumn.

The same is a toilet.

Someone is in a daze.

Someone has entered the sanctuary of mathematics.

Because they were still in the "test", the two did not say anything, so they returned to the teaching and research group and continued to answer the questions.

At this time, Li Zheng looked back to those who were stuck in his calculation process.

Can't help laughing.

Mathematical problems are all mathematical problems.

Dozens of hours of high-level learning really caused Li Zheng to undergo qualitative changes.

But when it comes to the topic, it is not so smooth.

First, his high-level learning is more about mastering basic tools, and there is not much practical consolidation.

Second, the mathematical calculation of the physics semi-finals is extremely large. Many questions only look at the process of solving the problem, and they can't even see that this is a physics problem.

Especially the optical problems are geometric problems.

The good news is that although these questions are complicated, they are mainly focused on the amount of calculation, and there are not many innovations in the calculation ideas.

Don't worry if the calculation is not smooth.

Counting his mother's 10 hours, it didn't go well.

Physics and mathematics are one.

Still afraid that she wouldn’t take Lin Linjing down?