Li Xin was called by the teacher to help a classmate. She frowned, but still agreed. "Teacher, I will. Hong Fei, if you have any questions, you can ask me. You haven't been here for a semester. I wonder if my grades have improved by a few places."
Although Qin Hongfei didn't have a very good impression of her dog, she saw that she was actively willing to help Yun. To outsiders, it seemed that she had not been back for a semester, but in fact, she had returned to the classroom after more than 20 years. It was possible that she really needed help in many areas.
I gladly accepted it, "Thank you."
This exchange was quite pleasant.
The first class was about teaching homework. Qin Hongfei didn't have any homework, so she just familiarized herself with the knowledge in the new textbook. From studying for a doctorate to being in the third year of junior high school, it would be a bit hypocritical to say that she still remembered the knowledge in the third year of junior high school textbook.
I have forgotten my parents long ago and now they are gone, but it is not to the extent that I have forgotten them completely. I can still remember them if I recite them.
Even if you can't remember the knowledge points, it's okay to interpret them yourself.
Qin Hongfei familiarized herself with the several textbooks she had received, and she immediately had an idea in her mind. Fortunately, the memory points were still there, and she could make up for the missing ones and there was enough for use.
There won't be any problem in agreeing to the old lady's 90 points.
As she was flipping through the pages, she saw an equation and paused. This question...
...
...
Li Xin had been looking at her. Knowing that she had not read last semester, she must have a lot of things she didn't understand and needed help. Thinking of the teacher's instructions, she said with a bit of arrogance, "What's wrong? What don't you understand? Do you need me to lend you your homework? I tell you, if the teacher didn't ask me to lend it to you, I definitely wouldn't lend it to you. Others have wanted to borrow it but couldn't. And my grades are all A!" She said in a proud tone.
Qin Hongfei really needed help. Li Xin was willing to help, so she asked without hesitation, "Well, there are some things I don't understand. How do you solve this equation?"
Li Xin took a look at it and saw a chemical equation.
The teacher taught this last semester, but because he said it would be taught mainly in the second half of the semester, I didn’t talk much about it.
Ribose is an essential substance for human life. Ribose is known to... After reading the questions, Li Xin suddenly became like every student who finished writing the test paper. He was confident that he could get full marks on the test paper. "The teacher has talked about this question. I remember. Let me calculate it..."
Qin Hongfei suddenly became interested and watched her convert.
The other students who were bored also came over. With so many people around, Li Xin felt more proud. She explained the equation and solved the answer in no time. She instantly received sighs and praises from the other students. She was proud and showed the photo to Qin Hongfei, waiting for her admiring look and praise.
Qin Hongfei was looking forward to it, but when she saw the final answer, she was speechless. She really shouldn't have had such high hopes for her deskmate who walked the dog without leashing it. Seeing that other students were suspected of being misled, she said quietly out of kindness, "Li Xin, your answer is wrong."
"How is that possible?" Li Xin retorted without thinking, "I remember everything the teacher taught last semester, and you didn't come last semester. You didn't learn it at that time, so how do you know it's wrong?"
She felt that she was right and would not accept any argument.
Qin Hongfei said, "Because I know the answer to this question is, "C5H10O5."
For this kind of question, the answer should be too simple to calculate, but her problem-solving thinking is quick and decisive, and the knowledge required for the third year of junior high school requires an equation. Qin Hongfei asked for advice just to know the equation, so as to avoid writing out an answer that does not meet the third year of junior high school problem-solving standards and loses points because of it, which would be a waste of time.
Back to the 1990s, she became rich through scientific research
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