A few days later, the scores of English and Ma Zhe came out, and students could check them on the campus website.

"Damn, Ma Zhecai scored 88 points!" Zhang Kai slapped on the computer screen, directly giving the screen black, he asked Qin Yibo: "What bullshit Wu Dashen, Ma Zhe's last question is 20 points, and it does not appear on the three pages he provided! Marx's theory of capital circulation and capital turnover, I have a vague impression, I wrote a few blind questions in the last question, and I finally grabbed back 8 points with my wit. ”

"88 points is okay, I only have 78 points, and my last question is also blind, and 22 points are deducted for Mao?" Du Shengyong's self-esteem was hit, and he was also complaining about Qin Yibo: "Blame you, blame you, Qin Yibo, you blindly worship Wu Fu, which led to the tragedy." By the way, Qin Yibo, how many points did you score in the exam?"

Qin Yibo: "It's not high, ninety-two points." ”

"Walter?"

"Soul is light, Qin Yibo, I'm going to beat you to death!"

Zhang Kai and Du Shengyong picked up small fists and slammed Qin Yibo's chest to vent their dissatisfaction.

"Don't fight, don't fight! I'm also kind, and kindness is not rewarded!" Qin Yibo gently stretched his long arms and pushed the two roommates away.

Syllable!

Xia Lu slapped the computer desk and shouted: "You guys are enough!"

The roommates looked at Xia Lu, and Xia Lu said: "Shifting the responsibility to others is a sign of weakness. Qin Yibo didn't do anything wrong, Wu Fuyou is not a complete big fool, and if you memorize the three pages provided by Wu Fuyou, you can guarantee at least 80 points. Marx's theory of capital circulation and capital turnover, this is very basic common sense, Zhang Kai, Du Shengyong, you two should reflect on it, instead of blindly blaming others. ”

"Xia Lu, how many points did you score in the exam?" Zhang Kai asked.

Xia Lu said calmly: "One hundred points." ”

The world is quiet, everyone is doing their own thing, no longer playing and playing.

After a while, the three roommates learned that Xia Lu had also scored 100 points in the English test, so they slept separately and did not speak all night.

Xia Lu started the game with two perfect scores, which is good news.

But it should not be taken lightly, after all, college English and Ma Zhe are compulsory public courses, and the credits are not as good as the four professional core courses such as mathematics, physics and chemistry.

It is not difficult to get a full score in one course, but the difficult thing is to get a full score in all courses.

On the eve of the mathematics exam, Professor Yu Feng held a regular teacher-student tea party in the tea party room of the three houses of Meiyuan.

The math final exam is about to be held, and all students don't want to get a high score in math and brush up their GPA.

Professor Yu Feng's rule is that the total score of mathematics this semester = 60% of the final exam score × + 40% of the usual ×grade.

The usual grades have been estimated, and the students have all handed in their usual homework, and Professor Yu should have calculated how many points they can get.

After all, the final exam of mathematics accounts for 60% of the score, and the students have asked Professor Yu some difficult mathematical problems, hoping to find out important information about the final exam from Professor Yu's mouth.

Yu Feng had an incredulous expression on his face and said to a classmate: "Taylor formula? Du Shengyong, you actually asked me Taylor formula, how to apply Taylor's formula, don't you know it in your heart?"

Du Shengyong said hesitantly: "I...... I have a number in my heart, a number. ”

"You little villains, I'm afraid you don't want to extract the final exam question information from me, right?" Professor Yu glanced at the crowd, his sharp eyes with a strong critical overtone.

The students shook their heads and waved their hands: "No, no, no, there is absolutely no such idea, we love mathematics, we just want to learn mathematics with Professor Yu, and it has nothing to do with the final exam." ”

"That's good, learn this kind of thing, don't have utilitarian thoughts. Yu Feng nodded, and then said: "On the university campus, there are many other meaningful things to do in addition to exams, such as sports, socialization and love. The first semester of freshman year is almost over, so there shouldn't be any single dogs in our class, right?"

The "Emmm ......" students responded to the question with a variety of interjections.

"And the single dog?" Professor Yu asked.

Students: "It's too much!"

"If you have been in a relationship, or are in a relationship, please raise your hand. Professor Yu changed his expression.

A small number of students raised their hands, either triumphant, or gloomy, or unhappy.

Professor Yu looked at a student: "Xia Lu, about love, are you in the past tense, or in the ongoing tense?"

"Past tense. Xia Lu said in a very calm tone.

Professor Yu sighed lightly, as if recalling some past events: "Let her pass the past, but the past still retains mathematical significance." ”

"Oh?" Xia Lu's eyes lit up, Professor Yu had something.

"Xia Lu, I'm sure you'll meet other girls in the future, maybe more than one. Suppose you have talked about a girlfriend before, and you plan to get married within 7 years, then in the next 7 years, Xia Lu, do you plan to talk about a few more girlfriends and join hands with one of them to enter the marriage hall?" Professor Yu said and suddenly asked a question about emotional marriage.

Xia Lu was difficult to answer: "This ...... It's unpredictable, isn't it?"

"Suppose I have the superpower of predicting the future, and now I tell you Xia Lu, you will be dating 7 different girls in the next 7 years, so how many girls are you most likely to propose to succeed?" Professor Yu became more and more excited, as if he really had the superpower of foresight.

This...... This is, is this it?

Xia Lu's body shook, but his heart was a little excited, his intuition told him that Professor Yu would not set up this kind of marriage problem for no reason.

A man with marriage plans and a relationship with 7 girls in the next 7 years, which girl does he propose to the girl with the highest probability of success?

This question must involve a mathematical theory.

Xia Lu was pondering, and the other classmates were also contemplating.

Everyone is a smart person, and the marriage proposal question set by Professor Yu is likely to be related to this final exam.

Professor Yu has a knife mouth and a tofu heart, and it seems that he will still reveal some important information about the final exam questions, in a tactful way.

Xia Lu thought for a while and said: "I think the success rate of proposing to the sixth girl is the highest, although I don't know what she looks like and where she lives, but if I meet her, I will propose to her." ”

Yu Feng smiled and asked, "What is your theoretical basis?"

Xia Lu: "Random events and their probabilities." ”

Yu Feng was noncommittal, and asked all the students instead: "What about the other students, if you are you, which girl do you think has the highest success rate of proposing to you?"

"The seventh. Du Shengyong was the first to answer.

Yu Feng kept smiling: "Oh, Du Shengyong, what is your theoretical basis?"

Du Shengyong said with confidence: "Elimination method and exhaustive method. First of all, before the age of 22, I couldn't get married even if I proposed, because I was not of legal age for marriage, which is the principle of exclusion. According to the principle of exhaustive enumeration, I need to exhaustively list every girl, that is, I have been in contact with every girl before making a marriage proposal, so I choose to propose to the seventh girl. ”

"Far-fetched!" Yu Feng's smile disappeared, replaced by an unceremonious reprimand of Du Shengyong.

"Xia Lu, what are you smiling at, your answer is also wrong!" Yu Feng continued to train Xia Lu after training Du Shengyong, and then said: "Let me tell you the correct answer, let's say you meet 7 girls in the next seven years, and the success rate of proposing to the second of them is the highest. Why is it the second one? Think about it yourself, think about it. This is the end of today's tea party, and I hope that tomorrow's mathematics final exam will allow students to get good results. ”