The class bell rang, and a white-haired old professor with thick glasses walked in. Dust, → Literature, √ Learning

The old professor put down the book and said, "Today is the first day, so I won't call names, but notify the students who haven't arrived." If you are caught skipping class three times this semester, then the homework will be hung up. ”

"Teacher, no one in our class is absent today. And there are more people!" In order to vent the dissatisfaction in his heart, Zhou Guangwen stood up again, glanced at Shen Lang, and said, "Liu Qingyi brought a boy over, we are in class, should we let the extra people leave?"

"Oh?" the old professor glanced at Shen Lang.

Liu Qingyi got up and said, "Teacher, he is my friend, and he is here to observe." The school doesn't prohibit outsiders from observing, so it should be allowed, right?"

"Teacher, this is too unruly. Zhou Guangwen frowned.

The old professor said in a deep voice: "You don't need to care about this kind of rule, of course you can audit if you want to." There is no end to learning, and this attitude of being willing to learn is very good. Well, don't waste time on this matter. Please take out your textbooks, and today we are going to talk about a more difficult formula. ”

The old professor started to lecture, and Zhou Guangwen was in a bad mood.

Shen Lang was idle and bored, but he also listened.

It was Liu Qingyi, who got impatient after listening to it for a while, covered her face with a textbook, and talked to Shen Lang in a low voice, her playful appearance looked a little cute.

After being in contact with Liu Qingyi for a period of time, Shen Lang also found that she belonged to the type of cold on the outside and hot on the inside.

"That's the formula, everyone should understand it, okay? Okay, let's do a question to consolidate it. The old professor took the book and wrote down two questions on the blackboard, and said to the students: "These two questions are a bit difficult, and it is nothing if they can't be solved, after all, the formula is too complicated." However, students who want to take the postgraduate entrance examination should still pay attention to take a closer look. ”

The students in the class looked at the questions on the blackboard with confused expressions.

These two questions are also too difficult, and few people in the class can solve them.

There are only a few characters at the level of Zhou Guangwen, racking their brains to be the first to solve this problem.

For some top students, this is equivalent to a competition.

Shen Lang glanced at the topic with interest and remembered it in his heart.

It took ten minutes for Zhou Guangwen to stand up first and say, "Teacher, I figured it out, is the answer to the first question 1?"

"Oh, you've figured out 1!" the old professor smiled and said appreciatively, "You're right, the answer to the first question is indeed equal to 1." It seems that you should have figured out this formula, and if you go to graduate school in the future, this formula should not be difficult for you. ”

Many students cast amazed eyes at Zhou Guangwen, who can solve this kind of problem, and he is worthy of being a scholar.

"Actually, this question is not difficult, you just need to calculate it carefully. Zhou Guangwen said with a snorting face.

After speaking, he glanced back at Shen Lang and said, "I think this question, the students who have just listened carefully should be able to calculate it, and the student who is listening to it can also calculate it." ”

The eyes of all the students looked at Shen Lang in unison, and the old professor also glanced at him, but the old professor didn't have much hope for Shen Lang. This kind of question is inherently difficult, and you expect someone who comes to the first day to sit in on it to solve this kind of question, which is tantamount to a fool's dream.

Zhou Guangwen just wanted to deliberately find trouble with Shen Lang, and he said very directly: "This observer, what do you think of this question?"

There was a burst of laughter from the class.

Shen Lang didn't speak, Liu Qingyi frowned, stood up and said, "Zhou Guangwen, what do you mean?"

Zhou Guangwen saw Liu Qingyi staring at him with a cold expression, and his mood suddenly became terrible, anyway, he felt that he and Liu Qingyi had no possibility, so he simply broke the jar.

"It's not interesting, I just want to see if your friend listens to it and sees the effect. Zhou Guangwen said with a resentful face.

The old professor waved his hand and said, "Okay, okay, let's not discuss this matter." Let's take a look at this second question, the second question, has anyone figured out the answer?"

Shen Lang said coldly: "The answer to this question is 2.13. ”

As soon as these words came out, the class was quiet for a while, and then a group of students burst into laughter.

"I said, this classmate, how did you calculate such an accurate number?"

"That is, everyone who has gone to college should know the rules of high mathematics, right? Generally difficult questions, the answers are very simple, how can there be such a complicated one. ”

"Yes, with a decimal point, you're too good at this. ”

Everyone laughed and laughed, but no one noticed that the old professor's face on the podium suddenly froze.

Liu Qingyi didn't know why Shen Lang suddenly spoke, but she vaguely felt that Shen Lang shouldn't be talking nonsense.

However, Shen Lang didn't even count such a difficult question, and it was impossible to come up with a real answer.

"Teacher, I think the answer to this question should be 2. Zhou Guangwen opened his mouth and said, he had been burying his head in this question just now, and he already had a rough result in his heart.

The old professor came back to his senses, scratched his head and said, "If the answer is 2, you can get half the score for this question." ”

Zhou Guangwen's face was full of pride, this kind of problem is difficult to solve in less than ten minutes. It only took him about five minutes to get half the score, and he felt pretty good.

Zhou Guangwen felt that in terms of knowledge, he was already very NB, and if others didn't know that he was so good, it would be a very painful thing!

So he likes to express himself.

"Hmph, isn't it just half the score? Guan Jing snorted, she was a little unaccustomed to Zhou Guangwen's face.

The old professor glanced at Shen Lang meaningfully and said, "Actually, the real answer to this question should be 2.2. In the postgraduate examination, this kind of question is generally used as a plus. If the result is 2, you can get half of the score. If the answer is 2.2, you can get a full score. ”

Speaking of this, the old professor's voice paused and continued: "However, the perfect answer is 2.13, if you can get 2.23, you can get a full bonus point, which is generally fifteen points." ”

Except for Qiao Xing, who was sleeping on the table, all the students in the class showed shocked expressions.

It's really 2.23, exactly the same as the answer Shen Lang said.

The students looked at Shen Lang again, and the previous ridicule and ridicule disappeared, replaced by surprise and shock. Liu Qingyi's boyfriend is inevitably too powerful, and he can calculate the results so accurately!