Starting with softness, accompanied by Lin Shan's painful groan.

After a fierce fight.

"Let go!"

"You let it go first!"

"Everyone is a woman, why bother to make things difficult for women! I will count one, two or three, let's let it go together!"

"good!"

After a while, two women who set an example looked at each other silently.

Lin Shan groaned and rubbed her breasts, "You damn girl, I'll joke with you. Why are you doing so seriously? It hurts so much!"

Bai Xiao showed a sarcasm and said indifferently: "Who asked you to hit your chest first."

"I'm just kidding you."

“So too…”

Lin Shan: “…”

Lin Shan felt a little autistic.

Strictly speaking, she suffered a great loss in the contest just now. Although she took some advantage at the beginning, she only took some of it, but then she made many mistakes. On the other hand, Bai Xiao touched her pulse. During the "close" stage, she took her hands off guard and lost her son. In the end, the dragon was slaughtered. The situation was over, and she had to end up with a abandoned son and admit defeat. It was a grand unfolding and a bleak ending.

"Bai Xiao, have you really practiced?" Lin Shan asked gasped.

"I've practiced a little, how about it, it's okay."

"It's more than just a douche. I feel that you can beat more than most boys."

Lin Shan said with her eyes shining: "It seems that I have to flatter you well in the future, so that I can get free bodyguard services."

"This is easy to say!"

Bai Xiao smiled elegantly at this and agreed readily.

After having sex with Lin Shan, Bai Xiao took the time to go back to the guard room of Qinglin Lake Community and took back the clothes he had stored there.

When I came back, I saw Lin Shan sitting in the living room watching TV, so I called her to go to a nearby supermarket to buy a brand new set of bedding.

The bedding distributed by the school is customized according to the beds in the student dormitory, and the size is obviously smaller than that of home use. The bed on the landlord is a large bed, so it is necessary to buy a new set of bedding.

Moreover, taking advantage of this opportunity to buy bedding, Bai Xiao can get familiar with the surrounding environment.

After walking around with Lin Shan, he worked hard to move all the things he bought to his home. The preparations before moving in were completed. In addition to buying two brand new three-piece sets of beds, Lin Shan also bought oil, salt, sauce, vinegar and rice. It seemed that he was preparing to make a fire and cook by himself.

Bai Xiao is not very clear about the skills of the beauty Lin, but seeing that she looks so confident, she should have a solid foundation. This is the best way to live with her in the future and have fresh food to eat.

Thinking of this, Bai Xiao showed a smile on his lips.

When Bai Xiao went out this time, he found that Xiangshui Biyuan was worthy of being a high-end community, and the area in which he was located was really prosperous.

Not only is there a bus stop when you go out, the transportation is convenient, and there is a large shopping supermarket and commercial plaza not far away, and shopping is also close to you. From the map, there is actually a snack street two streets away, with various restaurants, shops, ktvs, bars, and even foot baths all night, covering almost all the elements of food, clothing, housing, transportation and entertainment.

This is amazing.

She remembered that when she first came to Binhe City to study for university, it was still a construction site under construction, but she didn't expect that it would have developed so quickly in a few years. She had known she would have invested in a property nearby and would have waited for appreciation. But now it's not possible and has missed the best golden period.

"Bai Xiao, aren't you really not staying here tonight?"

After dinner, Bai Xiao sent Lin Shan back to the community. Looking at her delicate face, Lin Shan couldn't help asking. The dinner between the two was solved outside. Now all kinds of things at home have not been sorted out, and obviously they do not have the conditions to make a fire and cook.

Bai Xiao nodded and nodded, "I'll go back tonight and organize the things in the dormitory by the way. I'll move them here at one time tomorrow."

In fact, the rental house has the conditions to stay overnight, but Bai Xiao thought about it and decided to stay for one night. No matter how he said that he was going to move out and stayed there, he had not told his roommate yet. If he didn't go back tonight, he would start moving things as soon as he went back tomorrow morning, which would give people a feeling of not being righteous enough.

Even if the roommates don’t say it, they will feel uncomfortable. And when she goes back this time, she can greatly resolve the embarrassment in this aspect.

Seeing that her attitude was decided, Lin Shan said, "Since that's the case, I won't advise you, but you are a girl after all, remember to protect yourself."

Bai Xiao smiled: "Did you forget that I know how to be good at kung fu? It's not easy for ordinary people to bully me."

Lin Shan burst out laughing: "Then have you ever heard the saying "Two fists can't beat four hands"? I'm afraid that if your Miss Bai's beauty is exposed, it will cause a group of people to fight you. Even if you shout out, you will probably not be able to escape the fate of being humiliated."

"Another, what if you meet an extraordinary person?"

Bai Xiao frowned: "You can't think of a good one?"

This joke has no meaning at all.

"Okay, I have my own sense of responsibility." After saying that, Bai Xiao waved his hand, took out his boy's clothes and went into the bathroom.

Lin Shan shook her head helplessly when she saw this, but she didn't care too much. After all, Bai Xiao had survived this way in the past few years, and I think she should have her own way. Besides, she had seen Bai Xiao's skills, and she was really more flexible than loaches. No one could bully her.

Soon, Bai Xiao finished dressing up and returned to the room. He saw Lin Shan lying on the bed and tidying up the bed. After saying hello to her, he was about to go out.

At this time, the sky was already a little dim. Bai Xiao put on the silver frost mask again and became that delicate boy again.

Binhe University of Technology, boys' dormitory.

When Bai Xiao walked into Room 502, he saw that there were only two people in the room, Han Ying and Li Xianbin, and they were arguing fiercely because of some problems.

"What are you...is arguing?" Bai Xiao looked at them suspiciously.

"Bai Xiao, you are here just in time. We have a problem and can't argue. It happened that you are a top student, so you came to tell us." Li Xianbin immediately came up to meet Bai Xiao when he saw that Bai Xiao came back.

"What's the problem?" Bai Xiao became interested.

"Tell me, 0.999...(cycle) or 1, which one is bigger? I think it should be 1 a little larger, but Han Ying said that the two are the same big. This is obviously a little bit short, how can it be the same big!"

"You two are fighting for this?" Bai Xiao was surprised.

After understanding the cause and effect of the matter, she understood why Li Xianbin and Han Ying quarreled. It turned out that Li Xianbin suddenly saw someone asking this question when he was browsing the WeChat group, so he and Han Ying gave different answers respectively. Li Xianbin thought that 0.999... should be smaller than 1, while Han Ying thought that the two numbers should be the same size.

"Bai Xiao, which of these two numbers do you think is bigger?" Li Xianbin asked.

"Of course it's the same big!" Han Ying interrupted.

"Don't interrupt!" Li Xianbin glared with thick eyebrows and big eyes, and he was really powerful.

Bai Xiao smiled and said, "Your answer is 1 bigger. How did you come to this conclusion?"

"Isn't this very obvious? 0.999... Although there is an infinite loop, it's still a little bit short of 1 after all. It must be a little bigger. This is common sense!"

"Oh, common sense? Big guy, can I ask you a few questions?"

"What's the question, you ask." Li Xianbin said fearlessly.

"In our country, can the water released from the faucet be drunk directly without boiling?" Bai Xiao asked seriously.

Li Xianbin was stunned for a moment. He was clearly talking about math problems, so why did Bai Xiao ask about the water? But he still shook his head: "Of course you can't drink raw water directly."

"Can the apples bought on the market be eaten without cleaning?" Bai Xiao asked again.

"Of course you can't eat it."

"Then why can I eat the water directly released from the faucet to wash apples?" Bai Xiao looked at Li Xianbin with a smile.

"this……"

Li Xianbin was stunned for a moment and realized, "Ah no, why do you ask me these questions? We are talking about mathematics now."

Bai Xiao spread his hands and said, "It's mathematics, but before this we have to filter out the so-called common sense. Sometimes common sense is the culprit that misleads us."

Seeing Li Xianbin's confused look, Bai Xiao smiled: "You just said 0.999... is so small than 1. Then my question is, is one-third equal to 0.333..."

Seeing Li Xianbin nodding, she continued to ask: "Is that 0.999... three times that of 0.333...?"

“Yes…yes.”

"Then the question is, how much is one-third three times?"

"Of course, it's 1..."

"That's all, 0.999... is three times that of 0.333..., 0.333... is equal to one third, and one third is three times that of 1, so why isn't 0.999... equal to one?"

"You see, right? Bai Xiao also thinks that these two numbers are equal." At this time, Han Ying hugged Li Xianbin's neck and laughed.

"But I always feel something is wrong." Li Xianbin frowned and fell into deep thought.

"There is nothing wrong. Why can you accept 0.333... equal to one third, but you cannot accept 0.999... equal to one? This is actually what you call common sense and cause trouble."

"Is 0.999... really equal to 1?" Li Xianbin was a little shaken.

"Say it's pretty sure, yes."

Bai Xiao looked at him and confirmed: "In advanced mathematics, whether two real numbers are equal is defined as: in a complete real number system, if the difference between two real numbers is infinitesimal, you think that the two real numbers are equally large. And your real misunderstanding is that 0.999... is essentially not a 'finite' number, it itself has the meaning of 'limit'."

“…”

Li Xianbin's smile froze on his face, and he felt that his advanced mathematics was in vain.
Chapter completed!