Since being hurt by the word "pickle girl", Lu Xi has suffered from the word "bubble" allergy, and then Jiang Caiwei and them have suffered.

Because they must be careful with their words when speaking, and avoid making tea, kimchi, rice, soup, and even foam, light bulbs, soap bubbles, etc., all words that contain the word "bubble".

If you accidentally say it, you will immediately encounter Lu Xi's shameful and inhumane gaze.

Especially after that, Chen Zhikuan often appeared within Lu Xi's range intentionally or unintentionally. Although Chen Zhikuan didn't come to talk, even the blind knew his little thoughts.

It's nothing more than that if you want to soak in Lu Xi, an arrogant school flower-level beauty, you can't be too anxious and too anxious, you have to move forward step by step. And this step by step, the first step of slowly advancing is to often appear in her line of sight, so that she can get used to her own savings.

As a result, Lu Xi forced Jiang Caiwei to look at them, and the resentment contained in their eyes became even stronger.

"Lu Xi, don't complain, if you dare to talk to someone who is wrong, you will be issued a good person card. The "Diamond Sutra" says that a qiē has a way to do, like a dream bubble ......"

Seeing that Lu Xi was extremely depressed, Jiang Caiwei, who wanted to comfort Lu Xi, was covered by Qin Guyu before she finished speaking.

But it was too late, and Lu Xi had already glared at him.

Jiang Caiwei died at the age of 15 years, 2 months and 6 days.

In order to dispel the darkness and resentment in Lu Xi's heart, Jiang Caiwei, who came back from the dead, came up with all kinds of ways to distract their hearts.

For example, in the evening, we run along the embankment of Juqingyuan.

For example, during recess, we play chess together, backgammon. Although Jiang Caiwei and the others knew that no one could beat Lu Xi in backgammon, they resolutely exerted the fearless spirit of sacrifice sent by thousands of miles, just to let Lu Xi, who was slowly falling into darkness, return to the light.

For example, on weekends, spend a few bucks on a movie at the school's movie theater.

"Lu Xi, why don't we go to the movies, haven't you always regretted that you haven't seen the 3D version of "Avengers 2", it just so happens that the school's cinema has recently been upgraded to a 3D cinema by alumni donations."

Therefore, Lu Xi's life has been quite comfortable recently, and the gloom in his heart has dissipated little by little.

It would have been better if it weren't for Chen Zhikuan always dangling in front of him.

It's just that what annoys Lu Xi is that her comfortable life was broken by a rumor.

It was a new week, September 15, Monday morning.

As soon as Lu Xi returned to school, he was pulled by Jiang Caiwei and the others, and they were interrogated like prisoners.

"Lu Xi, why are you lying to us?"

"What are you lying about?"

"You are going to transfer to Oban, but you pretend not to know, and don't tell us."

"Who did you listen to?"

"I don't know, someone said that anyway. Do you think that we know and will stop you? ”

"You believe this rumor?"

"Why don't you believe it, this kind of news usually doesn't come out of nowhere."

"Then why don't I, the client, know?"

"You really don't know?"

"Believe it or not, I don't know anyway."

Lu Xi said something bad, and finally persuaded Jiang Caiwei and them that it was a rumor that she was going to transfer to Oban.

"Lu Xi, you come out."

As soon as the morning reading class began, Lu Xi was called out by the head teacher, Mr. Zhou.

"That rumor can't be true, right?"

was called out by the head teacher alone early in the morning, there must be something, Jiang Caiwei and the others couldn't help but be suspicious again.

Lu Xi, who was following the head teacher, was confused at this time, but the head teacher didn't say, so she didn't ask, and went all the way to the teacher's office.

To Lu Xi's surprise, when she arrived in the teacher's office, the head teacher left, leaving her and the other two teachers there.

Of the two teachers, one of them is not Wang Han and Fang Han's math teacher Mr. Wang, and the other is a male teacher he doesn't know.

"Teacher Wang, hello, teacher, hello." Lu Xi greeted the two teachers separately.

"Classmate Lu Xi, it's good for you, this is Teacher Fu." Teacher Wang said to Lu Xi with a smile.

At the same time, that Teacher Fu smiled at Lu Xi and nodded.

However, there seemed to be something meaningful in his smile, which made Lu Xi shudder.

"Let you come here, there is a scroll for you to make and see." Teacher Wang opened the drawer, took out a roll, and handed it to Lu Xi.

It turned out to be a roll, Lu Ximumu took the roll, glanced at it, and then was stunned for a moment.

Because on the header of the paper, there is the following line: 201× National High School Students' Mathematics Joint Competition First Test (Paper A).

Then Lu Xi thought about it, this year's league time seemed to be yesterday.

Seeing that Lu Xi was in a daze, Teacher Wang frowned slightly and asked, "What's the matter, have you seen this paper, or have you done the question?" ”

This suspicion is not unreasonable, the tournament was held yesterday morning, and with the current speed of information dissemination, it is possible that the paper will be spread in the afternoon and widely circulated, so that it is very possible for students to see it.

"Nope." Lu Xi shook his head.

When she was watching the proposition person's lecture, she was bored and occasionally did a little CMO, training team exam and IMO real questions. As for the real questions of the league, I have also brushed some of them, but I don't feel that there is much challenge, so I haven't had much contact.

It's not about herself, so she didn't pay attention to the league held yesterday.

It's just that she didn't expect that the math teacher would give her a league problem that she didn't think was interesting.

Thinking of this, Lu Xi couldn't help but touch the tip of his nose.

"Since I haven't done it before, it's good, you don't have to take the roll back, just do it here, 80 minutes."

Teacher Wang said, and personally pulled a chair from the side for Lu Xi. After Lu Xi sat down, he gave her a ballpoint pen and a stack of blank scratch paper.

Well, at this point, if you don't do it, you have to do it.

Lu Xi adjusted his sitting posture slightly, picked up the pen, and looked at the first test paper of this year's league.

There are no multiple-choice questions in the paper, only fill-in-the-blank questions and answer questions.

There are 8 fill-in-the-blank questions, each worth 8 points, for a total of 64 points. There are 3 questions, the first one is worth 16 points, the second is worth 20 points, and the third question is worth 20 points.

Combined, the total score for the entire paper is 120 points.

80 minutes to solve 11 problems, it seems to have a lot of time.

The first way: let A, B, C, D are four non-coplanar points in space, with a probability of 1/2 connecting an edge between each pair of points, whether any two pairs of points are independent of each other, then the probability that A and B can be connected by a polyline in space (composed of one edge or several edges) is?

It's a very simple question, and after a turn of the brain, Lu Xi wrote down the answer casually without thinking much - three-quarters.

The second way: a station every day 8:00-9:00, 9:00-10:00 there is just a passenger car to the station, but the time of arrival is random, cut the time of the two to the station is independent of each other.......

The third, fourth, fifth......

These questions, which mainly test students' basic knowledge, basic skills and ability to synthesize and flexibly use knowledge in high school mathematics, are more obscure and more twisted than the 5.3 she once brushed.

Lu Xi has an answer to every question without thinking, 8 fill-in-the-blank questions, and it will be done in a while, and I don't even use scratch paper.

(The second update, continue to ask for recommendation votes.) Some students may feel familiar with the topics in this chapter. (A pie-in-the-sky event, cool phones are waiting for you!) Follow the ~ point / Chinese network public account (WeChat add friends - add public account - enter qdread can be), participate now! Everyone has a prize, now pay attention to the qdread WeChat public account! ）