February 5th, the third class in the morning of Thursday, math class.

Gao Heshuai's loud voice sounded: "Let's take a look at the last question. The mathematics department of a certain university plans to hold a psychological test activity with different themes on Saturday and Sunday. Teacher Li and Teacher Zhang will be responsible for it respectively. It is known that the department

There are n students in total…”

“(Ⅰ) Calculate the probability that student A in this department receives the activity notification message sent by Teacher Li or Teacher Zhang;

(II) Find the integer m that maximizes P(X=m).”

After Gao Heshuai finished reading the question, he paused and used induction to list the process and answers to the first question.

When it was the second question's turn, he read the answer hastily and then threw away the chalk.

Announce relaxedly: "Okay, I'm done with this test paper."

The students looked confused. Yu Wen raised her hand and said, "Teacher Gao, you talked about every question before. Why did you suddenly stop talking about this question?"

Gao Heshuai looked at Yu Wen: "This is the final question of science and mathematics in our province for 13 years. Even if I explain it, you won't understand."

Yu Wen was choked: "There must be someone who understands, right?"

Gao Heshuai looked at Xue Yuantong, Jiang Ning, and Chen Qian, and said, "For those who can understand, I don't need to explain."

"I sincerely advise everyone, if you encounter a question you can't understand in the college entrance examination, don't read it. Go to other questions and get the points you can get. Don't aim too high!"

After giving a few words of instruction, Gao Heshuai left the classroom of Class 8 with a teacup in hand.

Yu Wen complained at her seat: "This is too much! Fatty Gao has no sense of responsibility at all! Yanan, are you right?"

Jiang Yanan thinks what Teacher Gao said is good, but on the surface, she still agrees with the little sisters.

After Gao Heshuai left, the classroom became messy again.

Duan Shigang, who is in the first row, did not surrender. In order to avoid a tragic fate, Duan Shigang studied very hard recently. As a sophomore in high school, he counterattacked the mathematics knowledge of junior high school.

When he encounters someone who doesn't know how to do it, he asks his classmates. Of course, he can't ask Wu Xiaoqi for advice, because Wu Xiaoqi is worse than him.

Duan Shigang held the junior high school exercise book, turned around and asked Chai Wei: "Awei, look at this question, why is the answer I calculated different from the real answer?"

【If a=a, then a =?】

Duan Shigang’s answer is: a=a.

Although Chai Wei was gloomy, he was not completely disgusting and could still chat with people. When faced with Duan Shigang who asked him for help, Chai Wei did not tell him to get out. After all, Brother Gang seemed quite capable.

Chai Wei: "Wrong, the answer is a=0 or a=±1."

Duan Shigang was depressed: "How can it be equal to this? Aren't the previous ones the same?"

Chai Wei stared at him and said, "Does the fact that you like Zhou Jinglan mean that Zhou Jinglan likes you?"

Duan Shigang cursed and turned around.

The location of the four consecutive seats.

Chen Siyu was counting on her fingers: "According to our school's arrangement, the final exam will last for two days tomorrow, and then the winter vacation will begin. Oh my God, even if the exam is finished, there are still 10 days until the Chinese New Year!"

"Coupled with the holidays after the New Year, doesn't it mean we have 20 days off?" Chen Siyu couldn't believe it. Did she and her sister fly into the sky because of this?

Xue Yuantong was playing a tank online battle game. She was very excited when talking to others, and she never forgot to respond: "Yeah, I can sleep for 20 days, it's so cool!"

Facing the upcoming winter vacation, Chen Siyu is extremely excited. Of course, she has not forgotten that if she wants to have a wonderful winter vacation, she must get good grades so that she can continue to sit with Bai Yuxia next year.

After all, there are countless people in this class who are hungry for Bai Yuxia!

She wants to protect the best Xia Xia!

Chen Siyu figured out the math problem that Teacher Gao didn't want to explain just now. The teacher didn't want to explain it to her, so she asked Jiang Ning for help!

"Tongtong, can we change seats? I want to talk to Jiang Ning about a topic." Tongtong blocked the meeting between Chen Siyu and Jiang Ning.

Xue Yuantong played a game: "Can't I tell you?"

Chen Siyu was embarrassed: "But you are playing games."

"It doesn't matter, tell me, which question is it?" Xue Yuantong put down the phone righteously.

So next, Xue Yuantong began to tell Siyu the topic.

This time Tongtong treated Siyu as a primary school student and explained each step in detail, which was extremely detailed, completely different from the usual perfunctory way.

Chen Siyu lowered her face, lost in the calculations, and gradually understood the first question. She was so happy that she died.

Surprised, she raised her head and thanked Tongtong.

It turned out that Tongtong drove a tank, dodged in various ways, and fought fiercely with the enemy, and then explained the problem-solving process to her in a very clear way.

Chen Siyu was stunned for a moment, and suddenly understood why her grades were so good.

…

Duan Shigang felt a great success after a class of in-depth mathematics learning. As he walked, he felt that he had gained the power of knowledge. He briefly gained the buff of loving learning.

But he had a bad thing. After reading some books, he began to look down on others. Duan Shigang looked down on his deskmate who was unlearned and unskilled: "Xiao Qi, if you don't study every day, what will you do in the future?"

Wu Xiaoqi looked surprised and thought he was strange.

Duan Shigang wandered to the back row, he was full of confidence: "Brothers, when I go to college in the future, should I study computers or finance?"

Cao Kun said: "Computers, the mobile Internet is so developed now."

Song Sheng, who was throwing away garbage, looked at him with small eyes: "It would be better for you to learn a down-to-earth job like an auto repair. Don't you also know how to modify will-o'-wisps? Isn't this unprofessional?"

Duan Shigang was furious: "What the hell, why do I have to deal with gasoline every day?"

Song Sheng: "Haha, then work hard, take the 211 exam, and learn mechanical automation."

Duan Shigang debated with him, discussing various walks of life.

Song Sheng was too lazy to say more to him and simply said: "No matter how children from ordinary families choose, they will end up in a mess."

After the words fell, Song Sheng added another blow: "Wu Xiaoqi's parents just bought someone a house in Shanghai. Think about it for yourself. After working hard all your life, can you buy one?"

Duan Shigang had seen the true appearance of society. He was persuaded by the factory to return to school again. Hearing this sentence, he felt extremely helpless.

Guo Kunnan stood up and said angrily: "There is nothing to envy, it's just what his parents give him now!"

Song Sheng: "Indeed, his parents will give more in the future."

"Grass!"

Guo Kunnan suffered a heavy blow and felt uncomfortable in his heart: "..."

When Xin Youling saw that her classmates were depressed, she comforted her: "Happiness has a threshold. Everyone's happiness is different. How much can a person eat in his life, and how much he can get..."

Song Sheng looked at Xin Youling and interrupted her: "Squad leader, have you ever worried about material things?"

Xin Youling was stunned for a moment and said, "No."

Although her family is not very wealthy, they live in one of the best neighborhoods in the city. They basically have everything they wanted since childhood, including the latest mobile phones, the latest computers, shoes, and clothes.

I have worried about material things.

In the third grade of elementary school, she had a conflict with her parents and ran away from home. At that time, she only had 5,000 yuan of lucky money on her.

When material happiness is satisfied, that's why Xin Youling pursues spiritual wealth so much. When she waves her hand and the whole class obeys her orders, the satisfaction she feels is unparalleled!

Song Sheng saw through the connotation of the monitor. People like the monitor will never understand the helplessness of ordinary high school students trapped in material things. The kind of people who want to change to a mobile phone that does not jam, want to buy a pair of brand-name shoes, and want to eat one more ban mian.

The craving for braised eggs and braised intestines.

Song Sheng shook his head: 'All living beings are ignorant, but I am the only one who is awake!'

Like a poet, he left the back row.

After Song Sheng, the King of Heartbreakers, left, the atmosphere in the back row became much more depressing. Duan Shigang said: "If there is a road that doesn't work, just use points to break it!"

At this moment, he regained his former high-spirited demeanor. Yes, in one and a half years, he will rewrite his life!

Duan Shigang found Xue Yuantong, who was first in the class, first in the school, and even first in the city.

He asked for advice: "Xue Yuantong, I want to ask you a question. I have been failing in math for a long time, so do you know how I can get a score of 140?"

Xue Yuantong tilted his head and said seriously: "Take two less multiple-choice questions."

Duan Shigang left lonely.

His high spirits were suddenly shattered.

…

Afternoon.

Grandma Dongdong rode a battery car back to the bungalow.

Seeing Dongdong making a snowman in the snow, Dongdong's mother howled: "My grandson, I finally stopped pulling your broken tires!"

Is it because there is no food? It’s because there are no guests coming to the farmhouse for dinner at noon.

When Dongdong saw his grandma, he squatted on the ground and made a snowman without saying hello.

At this time, Teacher Qian smiled sadly and approached Dongdong Nai.

"You scoundrel, go away!" Dongdong Nai felt disgusted when she saw him like this!
To be continued...