Your cola has changed color

Qi Jiu took the door of the teacher's office, and the cold air was blocked behind the door.

The January final exams of the No. [-] Middle School have just passed, and the first and second graders of senior high school have already started their winter vacation last Friday. Only the senior three students who have to make up classes until the eve of the Spring Festival are left in the whole school.

There are only five teachers in the office, and they are all taking advantage of the big class break to chat for a while.

"Come on, Qi Jiu." Luo Chun beckoned from behind a stack of exercise books.

Qi Jiu confirmed that Wang Ren was not there, and walked to Luo Chun's table in a few steps.

"Teacher, what do you want me to do?" Qi Jiu asked.

"Well," Luo Chun was looking at the grade sheets of the students in Class [-], without raising his head, "I have something to go these few days, and you can explain the final papers for me in the afternoon class."

Qi Jiu was quite surprised. He originally thought that Luo Chun was looking for him for self-enrollment.

"...It's not appropriate." Qi Jiu said, "I haven't explained the problem to others either."

"Hey, you got full marks for this paper, why can't you tell it?" Luo Chun looked up at him,

"Tell me, they've already forgotten the papers when I come back."

"I can't explain it well. Why don't you go to Li Yiyi, she has said that she is much more reliable than me." Qi Jiu declined.

"No, people in class always bully her." Luo Chun got up from his seat and began to pack his things, "She reported that no one listened to the lecture..."

"Then I don't have the ability." Qi Jiu felt helpless.

"Hey, how do you know if you don't try it?" Luo Chun said, "That's it. Don't forget the class in the afternoon."

After Luo Chun finished speaking, he didn't give him a chance to refute at all. He took the bag and walked straight out of the office.

Huang Xiaoyan, a Chinese teacher, walked in and was happy to see Qi Jiu.

"Oh, it turns out that the number one in our grade is here!" Huang Xiaoyan smiled, "You finally got the test right this time. I changed to your paper, and I almost cried out of excitement!"

The few teachers left in the office laughed after hearing this.

"110 points, 45 points for composition, look how good it is." Huang Xiaoyan took Qi Jiu's paper to check, "Sure enough, I asked you to read more composition materials before, it is still useful?"

"En." Qi Jiu responded.

In fact, he didn't read the material at all, this time the composition didn't digress, it was just a blind cat meeting a dead mouse.

To put it bluntly, he has not been interested in Chinese since he was a child, and he doesn't want to spend a minute on it.

If you have free time, it is better to do a few more math and physics problems, and the input-output ratio is higher.

Qi Jiu said goodbye and left the teacher's office, Huang Xiaoyan's voice was still behind him.

"This language is about to go up, maybe he can go anywhere by skipping the self-recruitment."

"Isn't it enough to be a top student who happens once in ten years?" Another female teacher answered.

"Hey, with that level, people should look higher up!" Huang Xiaoyan said excitedly.

Qi Jiu closed the office door, and the long corridor outside was crowded with noisy students.

These two ends are like two worlds.

(I.e.

in the afternoon

The first class bell rang on time, and Qi Jiu waited for the daily students to wipe off the writing on the blackboard left at noon before walking onto the podium with the math paper.

"Today I'll be teaching papers." Qi Jiu glanced down.

There was a lot of noise below, but now the noise didn't stop, but everyone's attention was focused.

"Why is Master Jiu giving lectures? It's so fresh!"

"That's called, Mom won't worry about me studying the series anymore." Sun Yu was the first to take out the paper.

The people below all had a kind of novel look on their faces, and they cooperatively found out the answer sheets from the papers.

Qi Jiu felt that it was going well, and looked down at the multiple-choice question section: "Then report the number of the question you want to talk about first."

下头哗啦啦翻起卷子，开始“3、7、11、13、17”地报题号。

Qi Jiu took chalk notes on the blackboard until he found that all the numbers were in place...

As soon as he wiped the board, he heard the children below start laughing, and suddenly he could understand the feelings of those young teachers in the Fourteenth Middle School.

"Then start with the first question..." Qi Jiu turned over the paper.

He said that he hadn't talked about the topic, but in fact he sent Luo Chun away.In fact, from junior high school to senior high school, he was often asked to give lectures on stage.

Considering the acceptance ability of the students in Class Nine, he specially wrote the formulas used on the blackboard every time he lectured. Sure enough, he saw the students in Class Nine copying the papers with confused faces.

Being able to do the questions and being able to speak are completely different things. Regardless of the difficulty of the papers and the level of the listeners, teaching and educating people is definitely not an easy task.

Qi Jiu's speech was very fast, and he followed the most simple and direct way of thinking.He never liked to follow what the school teacher said, and he had his own special method for solving problems.

After finishing the sequence questions, Qi Jiu began to draw three-dimensional geometry diagrams on the blackboard.

"This question is not difficult..." Qi Jiu used chalk to draw auxiliary lines on the graph, and marked the parts that needed to be proved in red.

"Hey, why didn't you say that?" Sun Yu complained.

Everyone in the class laughed.

"Next question." Qi Jiu glanced at him, then turned back to the blackboard, "This question is solved by complementing the shape, making this irregular three-dimensional geometric figure into a trapezoid..."

Qi Jiu continued to draw dotted lines, and the sun began to shine outside, making the blackboard reflective, and the traces drawn with white chalk seemed to be transparent.

When the picture was finished, the classmate sitting by the window stretched out his hand and closed the curtain.

a trapezoid.

Solid geometry is the best part of Qi Jiu's mathematics. If physics is based on talent, then solid geometry is purely a matter of interest.

Not only will he take the initiative to find new questions to do, but he is also used to keeping interesting questions on file.

"To tell you the truth, I think this is the most thoughtful thing Master Jiu said." Huang Chuxin commented in a low voice while taking notes.

(I.e.

Qi Jiu got the timing right, and just finished the three-dimensional geometry problem when the get out of class bell rang.

"Let's continue with the rest tomorrow." Qi Jiu said.

The paper was folded in a hurry, and the class entered a state of turmoil between classes in a second.

"Jiu Ye will become a teacher in the future, it's great!" A girl joked.

"Hey, you can have this, Teacher Jiu, think about it?" Her deskmate answered the conversation.

Qi Jiu got down from the podium and felt the phone in his coat pocket vibrate.

"Are you stupid? Master Jiu's surname is Qi ha ha ha ha ha!" The girl pushed her tablemate.

Qi Jiu stuffed the paper back into the hole on the table, took out his phone and looked at it, it was Lin Ran who sent him a WeChat message.

- Master Jiu, do you miss me?

Suddenly, his head became a little hot, Qi Jiu stared at this sentence for a while, and finally replied "It's okay".

In fact, it is not good at all.

Lin Ran said that NO.20 came back, and after entering January, he counted the days every day.

But the calendar card is as if it cannot be torn off. There is not much difference in daily life, and every day is very long.

Qi Jiu waited for a while, but didn't wait for Lin Ran to reply. He guessed that he might have sent himself a harassing text message when he found time.

But Lin Ran never sent him a WeChat message at this point.

When the class bell rang, Qi Jiu couldn't hold back and sent Lin Ran an extra message.

- Brother Lin, what are you doing?

The phone vibrated, and Lin Ran's message came back in seconds.

-I miss you.

Qi Jiu smiled and replied "Stupid not stupid".

He quit WeChat and looked at the date. Today is NO.12, and he has to wait another eight days.

For some reason, he suddenly felt dry at this moment.

Eight days was too long, like an impatient child, he wanted to turn over the rest of the time with one hand.

- Jiuye.

The phone vibrated again.

- You should hurry up and look down.

Qi Jiu didn't react when he saw this, until he inadvertently glanced out of the window.

Class [-] classroom is on the second floor, facing the small square of the school.

Lin Ranren was panting, wearing his long black coat, and beckoning to him with a mobile phone in his hand.

A smug smile appeared on his face.

The author has something to say:

I'm sleepy, there are two updates tonight.

Also, guess what Jiuye will learn in the future