This Question Has Been Taught 12 Times Chapter 6

Loop4(6)

Sun Daining simply moved too fast. By the time she reacted, it was already too late.

However, Bai Tong didn’t dodge or push away, and didn’t respond at all.

Bai Tong is very bad at dealing with any type of interpersonal relationships, but she has invented a way to deal with it, which is “don’t make any moves.”Just like when Ms. Bai was angry, she didn’t do anything, at least it wouldn’t add fuel to the fire and make mistakes worse.

So she just hung her arms and was held by Sun Daining, who weakly hooked her forearm with his wrist.

The two of them just walked forward without saying anything.Where did the words go?All the words were said by Yin Yi, who kept talking here and there, talking about endless topics.

Although Yin Yi definitely wouldn’t walk with Bai Tong on her arm, she walked crookedly and kept bumping into Bai Tong. Bai Tong felt like he was about to be squeezed by them when walking between them.

When Bai Tong returns home, she will gain the following:

I agreed to go out with them on the weekend.

Yin Yi’s WeChat account was added, and Yin Yi also created a group called “Writing Mutual Aid Group [Eye Expression]”

What kind of mutual help, what kind of help each other.

Bai Tong knew that the name of this group probably meant that Sun Daining raised needs, Bai Tong solved them, and Yin Yi was the eye, playing the role of a Big Sister Is Watching You, I will always watch you until forever.

Bai Tong thought, the energy in this world is really uneven. There will be people like Yin Yi who are energetic and as if they are on stimulants, and there will also be people like Bai Tong who are exhausted just by breathing.

For Bai Tong, it is very easy to get involved with other people, and the gain outweighs the loss. His mood and state will inevitably be affected by other people, which will further deplete his own limited energy.

It was okay when she was with Sun Daining. She liked being with Sun Daining.

But with Yin Yi, I felt like my energy was being sucked away by her.

But since Sun Daining was good friends with her, she could only try to accept it.

The word “going out to play” is quite new here in Baitong. Before going out, I looked in front of the mirror for a long time. Is a knitted Polo, a pleated skirt, and shoulder-length straight hair too ordinary?

There was nothing to match, so I grabbed a baseball cap and put it on.

Before going out, she reported to Bai Jingru that the psychological consultation was scheduled for tomorrow. Today, Bai Jingru showed mercy and let her go out.

Bai Tong was shocked when he got downstairs. Sun Daining and Yin Yi somehow managed to sneak into the entrance hall. They didn’t find a place to sit, so they just stood there. Sun Daining put her arms around Yin Yi’s waist and looked at her mobile phone.

Bai Tong: “…”

To be honest, these two are actually quite matched, no matter how you look at them, whether it’s height, clothing, appearance or personality, as well as how long they have been together as childhood sweethearts.

What about yourself?

Be beautiful on your own, whatever.

Go over and say hello to them.

Everyone finally took off their school uniforms and dressed in fancy clothes. They were all quite happy.

Especially Yin Yi, she seemed to be particularly interested in Bai Tong’s hat, circling around and looking at it non-stop.

Bai Tong wanted to ask her what she was looking at, but he still thought he could just ignore her.

Unexpectedly, Yin Yi said directly, “Xueba, your hat fits me so well, can you lend it to me?”

Bai Tong: “…” x2

What should I do? Don’t borrow it, it will look stingy.

Borrow it, I really don’t want to borrow it.

Bai Tong couldn’t decide how to handle it, so he had to say, “I’ll give it to you.”

Bai Tong took off his hat and handed it over. Yin Yi was too lazy to reach out to take it. He leaned down and directly put the hat on his head from Bai Tong’s hand.

This time Sun Daining has returned to the C position, so everything is staged in front of her, performed live and broadcast live.

Yin Yi was very satisfied with the hat on her head. She stretched out her hand to adjust the angle and said, “Thank you Ni~”

Bai Tong, “Yeah.”

The three of them continued walking forward. Why did Bai Tong feel that Sun Daining was particularly silent today?It seems like she hasn’t even said a word until now, right?Why are there fewer words than my own?

And she didn’t hold her arm as she walked. Why, wasn’t she just holding her arm around Yin Yi’s waist?

Bai Tong lightly touched Sun Daining’s arm and felt the very brief warmth of Sun Daining’s body.

Bai Tong stretched out his hand to hold her.

…I feel extremely nervous. It’s nothing. Even if they are good friends and they just hold each other’s arms, it shouldn’t be considered as stealing someone else’s things.

Of course, Sun Daining was the kind of person who responded. She also raised her forearm so that Bai Tong’s hand could have a fulcrum.

Next to her, Yin Yi was still playing with her hat, and the two people next to her were almost hooked, if they hadn’t already arrived at their destination.

Today’s activities are very ordinary, just shopping in the mall and eating.

The place to eat is also very ordinary, the kind of hot pot place where you can sing happy birthday to people.

Why come here?

Because it’s someone’s birthday.

Who?

Sun Daining.

Bai Tong was simply speechless. It was inconvenient for Sun Daining to just say it, but Yin Yi didn’t even remind him a word. It was too much!Heart!Machine!Got it!

Yin Yi ordered a beautiful birthday cake, took out a light green velvet box, opened it, and found a bracelet inside.

She put the bracelet on Sun Daining’s wrist, and it fit perfectly, as if Sun Daining had chosen it herself.

Sun Daining looked at her and said, “Thank you, it’s very beautiful.”

Yin Yi said, “Really? I knew you would like it.”

Bai Tong put it aside and watched their performance.

After they finally had sex with each other, Bai Tong had no choice but to say to Sun Daining, “I’m sorry, I didn’t know it was your birthday today.”

“It’s okay, I just wanted you to come, not to receive gifts.” Sun Daining joked.

Although he could buy anything for Sun Daining in the mall, Bai Tong didn’t want to do this, so he really didn’t give anything as a gift.

After the hot pot meal, they went to Sun Daining’s house together. There were no adults at home. Yin Yi stayed for a while and kept saying that he smelled of hot pot and wanted to go home and take a shower. As soon as she left, Sun Daining’s house suddenly became quiet.

Bai Tong had nothing to say, so he said, “She loves to be clean.”

Sun Daining replied, “Yes.”

After saying that, he asked, “Do you want to watch TV?”

Bai Tong said, “Don’t look.”

After that, the two were silent for a while, and the atmosphere seemed to get colder.

There was nothing to do anyway, so why not write math questions? Bai Tong said, “Let’s go, I’ll teach you the second question.”

Sun Daining laughed, “I have to write math on my birthday.”

Bai Tong said, “Why else?” After thinking for a while, he said, “Otherwise, I can go home and come back later.”

In fact, Bai Tong wanted to go back and look for a suitable gift for Sun Daining.

But when Sun Daining heard what she said, she felt a little unhappy and said, “You will leave as soon as Yin Yi leaves. Do you just want to stay with her?”

Bai Tong: “…”

Seeing that Bai Tong had nothing to do, Sun Daining took the initiative to find something to talk to her about, “What did your mother call you last time we had dinner?”

“Nothing, he said he would take me home.”

“Really?” Sun Daining switched her face to expressionless, and then pulled both cheeks down with both hands, “At that time, your expression suddenly changed from this to this.”

Bai Tong was amused by her actions and said, “Is it so exaggerated?”

“It’s not an exaggeration at all,” Sun Daining said, “It just changed from ‘I will never laugh again’ to ‘I will cry every day from now on’.”

“No way.” Bai Tong didn’t want to admit it and asked, “I must have always been unhappy. What was I like in your cycle before?”

“You don’t play with everyone much, and you don’t talk much. You always stay by yourself, reading or doing homework.”

Bai Tong knew that she had always been like this.

“You walk very fast when you go to school or at school, but when you come home you walk very slowly.”

This is because I don’t want to go home.

“There was a semester of badminton class, and you didn’t have a partner, so you played with the teacher.”

Slightly embarrassing.It seems a bit long ago that Sun Daining talked about things outside the cycle.

“You have a white down jacket with a fluffy terry collar, like a fox’s tail.”

Which one?No impression at all.

Bai Tong thought for a long time and finally recalled, “The down jacket you mentioned was from junior high school, why do you still remember it?”

“…I’ve been looping here and I have nothing to do, so I just recalled what happened before.” Sun Daining explained.

Bai Tong asked her, “Is it like this? How many times have you cycled?”

“This should be the fourth time?” Sun Daining counted on his fingers, “It seems so. My memory is almost confused, and there is nothing to remember.”

Bai Tong was a little surprised and asked, “You haven’t learned to solve this problem after four cycles?”

“…I didn’t know that I was going to do a test at first. How did I know?” Sun Daining felt a little guilty, and her voice was soft, as if she was coquettishly coquettish.

Now that it was said here, Bai Tong wanted to solve the problem quickly. She simply suggested, “How about I write you the rest of the answers to the math questions first? Just give me paper and pen.”

This time it was Sun Daining’s turn: “…”

“You really have to make me study math on my birthday. It’s so annoying.”

Although she was the one who said she wanted to learn, and she was the one who said she was annoyed, Bai Tong didn’t think it was a big deal. She sat down at a table and wrote down the steps to solve the problem seriously.

Review question stem: Known function f(x) = ln[x/(2-x)]+ax+b(x-1)^3

Second question: Prove that the curve y = f(x) is a centrally symmetric figure.

To prove this, you must first know the conditions that need to be met for the central symmetry of the function, and then substitute y = f(x) to prove that it meets the conditions.

The third question: If f(x) > -2, if and only if 1<x<2, find the value range of b.

This question has two parameters a and b. It is really easy to be confused when you first get the question, but with a little analysis, you can find that a is a constant, =-2

Bringing it to the original function, we get f(x) = ln[x/(2-x)]–2x+b(x-1)^3 > -2. This is another very common constant establishment problem, which can be solved through derivative analysis.

It's just that the process is a little more troublesome, but it's not too difficult.

The final result is b>=-2/3, and now this problem is solved.

Bai Tong wrote every step in detail. All the steps that she would have omitted in the past were written down this time. Some basic formulas, theorems and function diagrams were also included beside them, filling both sides of the A4 paper.

This piece of manuscript paper was divided into several pieces of content. Each piece of content was neat, straight and well-organized. Bai Tong took it and looked at it, thinking it should be easier to understand.

Hoping to help Sun Daining get out of the cycle, this is her biggest wish so far.