After completing the compulsory subject 1 of high school mathematics, Liu Yichen was in high spirits. He put the exercise books and mathematics textbooks into his desk and took out the physics exercise books. These exercise books were all received together with the textbooks. In addition, there are homework books.

Set of stationery.

In order to take notes better, Liu Yichen bought several thick notebooks, which he used to write down important knowledge points and question types that he thought were exciting.

The physics exercise book is very interesting. It is about half as thick as the mathematics exercise book. It has multiple-choice questions, experimental questions, and big questions.

Liu Yichen was immersed in the joy of answering questions and automatically blocked himself from the outside world.

Deng Linghao looked back at Liu Yichen from time to time, always with doubts in his eyes. He went to the same school as Liu Yichen in elementary school and junior high school, and was in the same class. He knew Liu Yichen very well. If there was anyone in the class who knew Liu Yichen best, it was Deng Linghao.

None other than.

"Could it be that Liu Yichen met a girl he liked again and was stimulated to work hard again?" Deng Linghao secretly muttered and guessed.

Deng Linghao knew that Liu Yichen's academic performance in primary school was very average, falling below the middle level, unlike him, Deng Linghao, who had always been an outstanding top student.

But when Liu Yichen started school in the first year of junior high school, he met a girl. When he was vague about love, he had a crush on this girl. But because this girl said something, she said that she liked outstanding boys who were good at studying, and she only wanted to be with a girl who was good at studying.

of outstanding boys as friends.

After being stimulated by this, Liu Yichen worked hard and studied hard, as if enlightened. Then inexplicably, he ranked among the top four in the school during the final exam of the first semester of junior high school.

In the second year of junior high school, Liu Yichen's performance ranking did not fall out of the top three in every exam, and sometimes he would get first place accidentally.

In the second semester of the third year of junior high school, Liu Yichen's grades began to drop. The reason was unknown to others, but Deng Linghao knew that it was because the girl Liu Yichen had a crush on dropped out of school. He dropped out of school before graduating from junior high school and went out to work, leaving Liu Yichen with no motivation.

After studying, it turned out that while others were making progress, Liu Yichen was slowly regressing.

When it was time for the high school entrance examination, Liu Yichen was qualified to enter No. 1 Middle School. Even his student number was the last in the class and the last in the class. This meant that his high school entrance examination results were the last in the class, because the student number of every student in the class was

Ranked according to high school entrance examination scores.

Liu Yichen's student number is 0608055, 06 represents the 06-level students, 08 represents the eighth class, and 055 represents the 55th-ranked student in the class.

Don't underestimate the student badges that students wear on their chests. They contain a lot of information.

Deng Linghao noticed that after entering high school, Liu Yichen changed again and became the good student who studied seriously. Out of habitual thinking, Deng Linghao's first thought was whether Liu Yichen met the girl he liked again and was stimulated again.

Now, the motivation from his heart makes him burst out with strength.

Deng Linghao secretly glanced at the girls in the class again, observing which girl in the class Liu Yichen liked!

"Eh~~ Could it be squad leader 'Lin Ningwei'?" Deng Linghao suddenly observed that Lin Ningwei, who was sitting in front, was secretly looking in Liu Yichen's direction.

"Damn it~~ Damn Liu Yichen, he started so early to steal a woman from me!" Deng Linghao not only did not feel happy because of this discovery, but a fire burned in his heart.

Because he also likes Lin Ningwei.

Lin Ningwei is the most beautiful girl in the class, and she has a cheerful personality. In just two days, she has become one with the classmates. She is like a peacock with its tail spread, so beautiful and dazzling.

Deng Linghao was also attracted and even secretly wrote love letters, just waiting for a good opportunity to hand the love letters to Lin Ningwei.

It turned out to be a good thing. Before he could take action, Liu Yichen, a hateful guy, had already taken advantage of him.

If possible, Deng Linghao would like to beat Liu Yichen violently.

It's a pity that Deng Linghao didn't dare, because yesterday, the school's rules and regulations were clearly introduced to each of them. One of them was to be strict in fighting. Once a fight occurs, they will face demerits, and in serious cases, they may even be punished.

Expelled from school.

After finally getting admitted to No. 1 Middle School, which student would be willing to be expelled from school?

Deng Linghao decided to buy a puppet after returning home, then write Liu Yichen's name on a piece of white paper, stick the white paper on the puppet, and then prick him with a needle a hundred or a thousand times!

Terrible resentment!

After the evening self-study, the students all left, and the whole classroom became empty, leaving only Liu Yichen.

No, it wasn't just Liu Yichen, there was also Lin Ningwei sitting at the first table in the first row. Lin Ningwei was lying on the table, but her eyes were looking at Liu Yichen at the last table.

"He is so handsome. He is so handsome and he studies so seriously!"

Lin Ningwei's eyes seemed to be filled with love. The more she looked at Liu Yichen, the more she felt that Liu Yichen was handsome. He is just handsome. There are so many handsome guys among celebrities. F4 is very popular in China. Who is not handsome? Which one is not cool? He is so handsome, and he is still studying.

Seriously, this simply increases the charm value.

Moreover, he must have a good personality and be a romantic person...

Lin Ningwei was making up her mind automatically.

As the saying goes, curiosity killed the cat, and there is another saying: When a woman becomes curious about a man, that is the beginning of her liking.

At first, Lin Ningwei just thought Liu Yichen was handsome and could be friends with Liu Yichen, but she was rejected by Liu Yichen, not once, but twice. This made Lin Ningwei, who had had a smooth life since she was a child, very unwilling. There was no one in the world that she could not get.

of.

Then Lin Ningwei began to observe Liu Yichen, and found that Liu Yichen studied very hard. The classmates were playing, and he was studying. Evening self-study was over, and Liu Yichen was still studying. Then she became curious. She did not understand at all that serious men are the most serious.

When you are attractive, your destructive power on women is huge.

The result is just like this. Unknowingly, he has started to automatically imagine Liu Yichen as the perfect male god in his mind!

"Ning Qian in the next class seems to be a classmate of Liu Yichen in junior high school. Let's find an opportunity to inquire with her..." Lin Ningwei was already making plans.

As the saying goes, if you know yourself and your enemy, you will be victorious in any battle. As a good student with excellent academic performance, Lin Ningwei still knows this truth.

Ning Qian is the monitor of Class 9 next door. She is also the monitor. They met yesterday and got to know each other.

Unknowingly, Lin Ningwei couldn't stand it anymore. She looked at the clock on the wall and saw that the time had already reached half past ten. If she didn't go back to the dormitory, the door of the dormitory building would be closed, and it was not far away from turning off the lights in the dormitory building.

, she didn’t dare to take a shower in the dark.

Lin Ningwei muttered to herself, then left with her schoolbag on her back. When she saw Liu Yichen didn't even raise his head, Lin Ningwei muttered - He was really ungentlemanly.

How she wished to hear Liu Yichen say, it's so late and it's not safe to walk alone. I'll take you back to the dormitory!

It's a pity that she didn't hear these words until she left the classroom and was 10 meters away from the classroom.

Liu Yichen, who was killing monsters in the sea of ​​questions and gaining experience points by killing monsters one after another, did not know the rich psychological dialogue of a little girl. At this time, he was already killing crazy. He conquered one physics question after another. He felt full of accomplishment.

It simply made Liu Yichen feel that the most wonderful thing in the world was to answer questions.

In my last life, I was really young and ignorant, and I didn't understand this truth. If I had realized this truth early, there would be no way I could have retained him in an ordinary school, at least in a prestigious 985 school!

"A kindergarten wants to build a slide (as shown in the picture) in an open space. According to the size of the open space, the horizontal span of the slide is determined to be 6m. During the design, the kinetic friction factor between the skateboard and the children's pants is 0.4. In order to make the children slide on

To be able to slide down the skateboard during the slide game, how high must the slide be?"

Liu Yichen came across a question at this time, which was a relatively typical question. After rotating the pen in his hand, he drew a right triangle directly below where he answered the question. Then he set the inclination angle as θ and regarded the child as a particle.

Through force analysis, the mass point has a vertical downward gravity, an upward support force perpendicular to the inclined surface, and an upward friction force parallel to the inclined surface.

Then the force of gravity is decomposed along the direction of the incline and perpendicular to the incline, and a force perpendicular to the downward direction of the incline and a force parallel to the incline are obtained. If a child can slide down the slide, then the force along the incline must be

Not less than the friction force.

Following this idea, Liu Yichen wrote: "In the x-axis direction, f1-ff=0, ff=f1=gsinθ=g*h/l; in the y-axis direction, f2-fn=0, fn=f2=

gcosθ=g*b/l; and friction ff=μfn.”

"Therefore, g*h/l=μg*b/l, h=μb=0.4*6=2.4m. So the slide must be at least 2.4m high before children can slide down the slide."

When Liu Yichen had just written the last word of the last line, the classroom lights turned into darkness with a "click". Liu Yichen suddenly woke up from the sea of ​​questions, stopped carrying his schoolbag, and rushed out of the classroom, "Peng"

The classroom door closed with a bang.

Ignoring the soreness of his feet, Liu Yichen ran towards the dormitory building. Almost on time, Liu Yichen entered the dormitory building before the door was about to close, and then he breathed a sigh of relief.

so close!

Liu Yichen secretly said to himself, looking at the closed door of the dormitory building, Liu Yichen then went to the dormitory, climbing the stairs, his balls ached, Liu Yichen grinned, he had never been as eager to have such an elevator as he is now.

Let him reach the sixth floor comfortably and return to the dormitory.

Entering the dormitory with a sore body, Liu Yichen saw that the dormitory was all lit up, the three desk lamps had already been turned on, and his three roommates had started their fighting moment. He said hello, took a change of clothes, and entered the bathroom to shower.
Chapter completed!