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!
Teacher Qian's mouth twitched. If it wasn't for the purpose of borrowing a knife to kill someone, he would definitely turn around and leave!
After suppressing his nausea, Teacher Qian said: "Guess why Dongdong likes to pull tires? Guess who threatened him?"
Dongdong Nai really felt something was fishy, so she called Dongdong over and asked him face to face.
Taking advantage of this opportunity, Teacher Qian hid his merit and fame and prepared to wait for a good show.
Who knows, the next moment.
Faced with grandma's inquiry, Dongdong replied loudly: "I am voluntary, I am voluntary!"
Teacher Qian was stunned, what the hell, Jiang Ning beat Dongdong so badly last night, and Dongdong didn't dare to file a complaint?
His cognition was subverted.
I didn’t get any information about Dongdong Nai, so I passed by Teacher Qian’s house and spit on him.
Teacher Qian wiped his face, his teeth itching with hatred.
Soon, to the west of the bungalow, a titanium gray battery car made a gorgeous arc. Jiang Ning and Xue Yuantong were back!
When Dongdong saw this, he ran in front of Jiang Ning in fear. From a distance of three meters, he asked for the debt: "Please pay me back my labor fee yesterday, 1 cent per trip!"
Yesterday, he did 16 trips and earned 80 yuan. Logically speaking, he should get a share of 1.6 yuan.
Jiang Ning chuckled, and sure enough, after the beating, Dongdong started to understand things.
Jiang Ning sat on the battery car and counted ten 1-cent coins. He threw them towards Dongdong and hit him in the face.
Dongdong was hit and became furious on the spot, but he didn't dare to get angry, so he quickly lowered his head to pick up the money.
Jiang Ning slowly hit him one by one, which was extremely disgusting.
Dongdong was hit many times, but he didn't have any objection. Teacher Qian couldn't stand it and said: "If you can, throw a piece away!"
Jiang Ning really changed it into a coin, and soon he smashed out twenty or thirty yuan.
Teacher Qian held it in for a while and said nothing, only wishing that it was not him who was hit.
…
Afternoon, boys dormitory.
"Pang Jiao, haha, is she worthy of being compared with me?" Zhao Xiaofeng sneered, then he lit up a cigarette and smoked it slowly.
The reason was that when they were discussing the heroes of No. 4 Middle School, Duan Shigang mentioned Pang Jiao from Class 8.
Zhao Xiaofeng is now the number one figure in the underachieving community of No. 4 Middle School, and is highly appreciated by Brother Tian. The cigarettes he usually smokes are all soft Chinese, and he is very powerful.
Ge Hao flattered him: "Yeah, Pang Jiao is nothing. Boss Zhao gives the order!"
Zhao Xiaofeng was photographed very happily.
Ge Hao suggested: "Brother Zhao came to the dormitory for observation today. I've made a fool of myself. Let's shout a few words to Brother Zhao. Let's make a video and send it to everyone!"
When Zhao Xiaofeng heard it, he thought it was good.
Ge Hao clapped his hands and shouted: "One, two, three!"
Then he started calling Mai: "After ten years of military service, my heart was lonely, and I retired to the mountains and retired to the mountains!"
Zhao Xiaofeng was sitting on the edge of the bed, puffing out smoke, and the smoke gradually enveloped his face. Along with the dynamic shouting, he was like a king.
After the filming, Ge Hao was extra considerate and provided a dark and cold filter. After seeing it, Zhao Xiaofeng was very satisfied and rewarded Ge Hao fifty yuan for his hard work.
Ge Hao was delighted. After confirming that the video was great, he clicked Publish on Kuaishou and thoughtfully added the address.
When Duan Shigang saw this scene, he felt particularly uncomfortable. It was his brother Gang who once enjoyed all this!
Duan Shigang left the boys' dormitory with all sorts of complicated emotions. He felt so lonely.
…
The first class of evening self-study.
This is the last night of self-study in this semester, and there is an inexplicable atmosphere in the classroom. There is both the pressure of final exams and the excitement of facing the holidays.
The students gradually became chaotic, and Xin Youling's management also became much more lax.
At this moment, a voice came from the loudspeaker: "
This afternoon, classmate Zhao Xiaofeng from our school smoked without authorization in the boys’ dormitory area and took a video to upload to the Kuaishou APP, which caused adverse effects. In order to strictly enforce school discipline... Zhao Xiaofeng was given the sanction of detention in school for observation…”
Suddenly, the whole school was in an uproar!
Chen Siyu was confused: "How can someone be so stupid and smoke and post videos?"
In this environment, Jiang Ning used whittled wood to set up a mini stove. He cut the finished Coke can and left the bottom of the can as a small pot, which he placed on a wooden stand.
Then, Jiang Ning lit a candle, put it at the bottom of the jar, and poured some oil.
Under the small flame, the oil quickly heated up. Jiang Ning took out the peanuts he grew in Huqi Mountain from his pocket, peeled them, put them in a mini pot, and started frying the peanuts.
He held a small spoon in his hand and stirred it around to fry the peanuts evenly. At the same time, he covered it with spiritual power to prevent the oil from splashing.
Tongtong on the left, Siyu on the right, and Jiang Yanan in the front all looked over to watch him fry peanuts, and they were quite shocked.
‘Can you still do this in the classroom? It’s dangerous!’
With the crackling sound, the aroma of peanuts comes out.
Jiang Ning picked up the crispy peanuts one by one and placed them on the previously disassembled Coke can. He took out a small packet of salt and spread it evenly.
Tongtong quietly said to Siyu: "I must be the first."
Recommend a book "My Father Jehovah"
Introduction: The Third Crusade is about to break out. The protagonist transforms into the brother of Jesus. Jerusalem is resurrected online and demonstrates how to seize the family property. It’s time for you to burst into gold!
