[I don't want to go back to the dormitory tonight, let's climb over the wall and go out.]

Liu Cheng opened the note in his hand in a daze, squeezed his eyes hard, and saw his deskmate clearly.

The afternoon sun shone through the gaps between the leaves and hit the girl's hair, making a little glimmer of light.

The shadow of the tree fell on the delicate face, and the cheeks were covered with rosy and green, and the fair swan neck. In the winter sun, you can even see slender blood vessels, the blue and white Chengshui No. 1 Middle School uniform, and a fragrance.

It seems familiar.

Dreaming?

What's her name?

Liu Cheng straightened up hard and looked around.

The multimedia podium of the big TV was full of slogans that made people enterprising their senior year. The teacher was explaining hard on the podium, and the students' desks were filled with tutoring books like hills.

This dream is the same as it is.

【The Internet cafes nearby are full.】

Liu Cheng took a few strokes and rejected the invitation from his deskmate. He supported his head with his arm and watched the teacher explaining math problems. He felt that it was a bit novel.

When a worker who has been struggling in society for nine years dreams of returning to campus, all the feelings when they looked back and turned into black and white memories.

The math teacher suddenly pushed his glasses and unexpectedly saw the sleeping spirit who was sleeping in a confused manner. He sat down and listened to the class and immediately said, "Liu Cheng, please tell me."

"Look at the blackboard, the extreme value of g(x)=f(x)/x in the interval (1, +∞). This is the simplest functional question, which often appears in multiple-choice questions and fill-in-the-blank questions. In the college entrance examination, this is the question that gives away points!"

Liu Cheng stood up in a hurry and blinked hard. Do you need to answer questions when dreaming?

A note passed through the mountain of the tutoring book and came to Liu Cheng's book.

【No extreme value.】

"Teacher, there is no extreme value." Liu Cheng immediately answered with the answer.

The math teacher was stunned. The basket of words he had prepared turned into a sentence: "Very good, let me tell you the reason."

reason?

Forehead……

The math teacher glanced at him and knew how Liu Cheng had answered correctly. He sighed and said, "Go over the wall and go out all night, sleep all day, and wake up when eating. Is this school or hotel?!"

"This is the life of some students in our class. Is this the state that a senior high school student should have?"

"After half a year, you will be in the college entrance examination. As long as you survive the college entrance examination, your life will turn a new page! Work hard now and enjoy a lifetime of happiness in the future! You must exchange youth for tomorrow, and you must exchange blood for the future! Students, you have already..."

This familiar taste is so rude.

Liu Cheng looked at the teacher happily, and he worked hard for a lifetime.

The result of getting into a good university is that you have to be a working person and work overtime until late at night every day?

The end-of-elimination system in the company is much more terrifying than that in the school.

The school only takes the class exam once a semester. When you arrive in the company, it will be once a month. Which time isn’t it a ghost crying?

He looked at the questions on the blackboard and looked carefully for a long time. He had at least taken the teacher qualification certificate in college. This question was a free score question, and it was really not difficult for the teacher to do anything.

"Teacher, substituting the functional f(x) can be reduced to g(x)=x+1/x-2. From this we can see that g(x) decreases on (0,1) and increases on (1,+∞), so there is no extreme value." Liu Cheng thought for a while and explained the reason.

The students in the whole class glanced at Liu Cheng.

The math teacher stopped preaching, looked at Liu Cheng, and asked with a puzzled look: "How did you determine the monotonous interval?"

"1>0, so the turning point of this checkbox function in the first quadrant is (1,0), so it increases on (1,+∞) and has no extreme value." Liu Cheng said very seriously.

"What about this? Is there an extreme value for g(x) in the interval [1,+∞)?" The math teacher moved his hand and the question changed.

"The minimum value is 0." Liu Cheng quickly answered, proving that he really knew this question.

All the students focused their attention on Liu Cheng. Their eyes were filled with disbelief and doubts. Can this sleeping god answer questions so fluently?

The answer is definitely not written by my deskmate, and there is a variation.

There was a little talk in the classroom.

The math teacher nodded and said, "Okay, everyone, sit down, let's continue to class. There are several traps in this question. It is very simple, but it is easy to make mistakes. First of all, you must distinguish the difference between good () and []. This is also the easiest thing to read wrongly, and in the process of simplifying..."

The beautiful female deskmate stopped and wrote half of the answer. When Liu Cheng sat down, he still squeezed at the beautiful deskmate, saying that he was sure to do it.

It's so good to be young.

It's just... this dream is a bit long.

Liu Cheng gradually felt strange. The math teacher talked endlessly for a class. After class, the group leader and the class representative began to collect homework. As soon as the English teacher left, the chemistry teacher entered again.

This dream is a bit terrible.

"Go to have a meal."

The beautiful female deskmate packed up the desks of the two people, picked up the rice bowl and said sweetly: "There are small buns in the cafeteria today, and it will be gone if you go late."

Not remembering someone else's name is a very impolite behavior.

Liu Cheng picked up his deskmate's notebook and looked at it. Chen Wanruo, his name sounds very good.

Wait?

This name is a bit familiar.

Liu Cheng widened his eyes. His girlfriend in high school?

?

He looked at Chen Wanruo, who was a little immature, and those black and white memories began to turn into colors.

When we get to know each other, we are disdainful and quarreled; when we get to know each other, we do our homework together, pass notes, and love letters together; ride a bicycle to the road; hold hands secretly in class; love until we die; climb over the wall to taste the forbidden fruit for the first time; when we graduate from high school, we agreed to go to the same university; when we are at the end of our youth, the inevitable ending - break up.

These memories that are deep in my mind come one after another.

"I'm reborn, do you believe it?" Liu Cheng sat in the cafeteria, with a small bun, a bowl of porridge, and the fried shredded potatoes that remained unchanged for thousands of years, with a lot of oil.

The reason for rebirth is very simple. He became a scumbag and did not escape the cycle of fate. He was sent back to the end of 2008 by a hatchet.

Chen Wanruo held her hair and didn't finish a mouthful of porridge, and she started to laugh.

Liu Cheng organized a language and said, "You were admitted to a key university in the college entrance examination. Under the pressure of my parents, I started to repeat the school. You and I entered the same university. Later, I fell in love with you, so we broke up."

Chen Wanruo drank the porridge bite by bit, without saying anything. She suddenly raised her head suddenly, her eyes filled with tears, and she gritted her teeth and said, "Do you want to break up?"

"no."

"Then why do you say that the Internet cafe is full? Didn't we agree? You said that the hotel is ready, just wait for my agreement. Now I agree, do you want to shrink back?" Chen Wanruo's tears rolled into clear tears.

"It's because I haven't promised you that, are you going to break up? Aren't I agree now? I'm a girl, you...I..."

Liu Cheng lived in the memory of thirteen years later, and Chen Wanruo lived in the memory of thirteen years ago. This sense of time and space intertwined him a little powerless and breathless.

He can't even remember Chen Wanruo's name.

"Are you going?" Chen Wanruo suddenly stared at Liu Cheng with her eyes, and she wanted an answer.

Perhaps this is what I thought when I was young? Anything will be based on choices in your heart.

Too small to do.

Liu Cheng took a deep breath and said, "If you don't go, I will study hard."

Chen Wanruo's tears fell like rain.

"I just don't want to do so after the class division exam, you and I are not in the same class. That's not in a hurry. You have to tutor my homework, otherwise I will be smeared in the class division exam."

Liu Cheng coughed twice, looked out the window, and said a few words against his will.

Chen Wanruo burst into tears and laughed. She took the tissue handed over by Liu Cheng, sobbed and said, "Then you promised me not to go online all night long in the future, okay?"

"good."

"Brother Cheng, go to team up to swipe the spider tonight. It will definitely explode tonight. The machine has been set, the seat is elegant!" Several boys gathered around talking and laughing.

If Chen Wanruo's eyes could kill people, these boys would have almost turned into ashes.

Liu Cheng felt a chill that rushed straight from his tailbone to the sky spirit cover, and shivered and said, "I won't go, you guys go, my girlfriend won't let me."

It is an excellent reason to shirk your girlfriend's permission.

"Don't you really won't go in the future?" Chen Wanruo asked softly while walking on the small island of the campus, stepping on the floor tiles one by one.

"Um."

"Don't you go there again?"

"Um."

"That thing..."

"No hurry."

"Give you a toothpick."

"good."

Liu Cheng answered twice with his nose. He always believed that surfing the Internet all night in high school and college was the reason why he became bald, and he regretted it countless times.

Baldness will not become stronger.
Chapter completed!