"Yes. The uncle couldn't help but glance at Bai Song: "You still minored in chemistry in college?"

"We have these classes, but mainly in biochemistry and forensic fundamentals. "White Pine is not shy about it.

The curriculum of the police academy is quite interesting, generally speaking, if you are in the field of investigation, in addition to this major course, you also have to take a major course in other majors, and if you are in other majors, you also have to take a major course in investigation, and so on.

"You don't look like a person from Tianhua City?" the uncle asked.

"Well, Lu Province's. ”

"No wonder, the foundation is not bad. The uncle took out a few more books: "These are the basic theories of the university, and they are the textbooks left by one of my students, in addition, the university also has to study structural chemistry and chemical engineering." How's that, are you interested in reading a book?"

"Yes. Bai Song nodded, still curious about this knowledge.

"Haha, yes, it's rare to have a love of reading. The uncle handed the inorganic chemistry book to Bai Song: "Come back to me after reading it." ”

Bai Song nodded, and when the judicial exam was over, there would be other things to watch.

"By the way, uncle, I don't know what your name is?"

"My surname is Don. ”

Bai Song nodded, he can't be called uncle in the future, he has to be called Lao Tang.

Phew, Donald.

I didn't gain much from a trip, I only got such a book, inorganic chemistry.

Back at the unit, Bai Song turned the book roughly, this book is actually nothing precious, you can buy it for dozens of dollars on the Internet, but the dense notes on it are really amazing, after reading a few pages, Bai Song is a little speechless.

What is the experience of reading books, but not notes?

...

For the time being, put away this book, which has increased in value many times because of the notes, Bai Song has nothing to do, and after being busy with several other cases in the past few days, he took the time to look at the book for the exam.

There are still 20 days of exams, and after work tomorrow, I have to go to Beijing City, Ma Zhiyuan sent my sister to school, and Bai Song has to go to see it anyway.

These months are the most fulfilling months of the white pine, when time passes faster and faster, and once you look back on the past years, once you find that you are not wasted, there will be a very strong sense of satisfaction.

And on the weekend, when Wang Liang heard that Bai Song was going to Shangjing City, he also asked to go, and Bai Song did not object, anyway, he was going to drive there, and he could enter the city with a permit.

This is the first time Bai Song drove to Beijing, he is not very experienced, he set off at seven o'clock in the morning, and was blocked on the South Fifth Ring Road at nine o'clock in the morning, and when he met Ma Zhiyuan, it was already noon.

It's too congested...

This is also normal, you know, the No. 6 highway leading to Shangjing City, in 2011 there was a traffic jam of 120 kilometers, the world record of continuous traffic jam for 20 days...

Bai Song met Ma Zhiyuan's sister Ma Ningning for the first time, and heard Ma Zhiyuan say that he originally wanted to name his sister Ma Ningning, Ning Ningyuan, but his sister didn't like it, so he called Ma Ningning.

It can be seen that Ma Zhiyuan is very doting on his sister, and this time he came to carry a large bag on his back.

Bai Song helped pick up the wind, moved things by the way, arranged them for Ma Zhiyuan and his sister, and drove Wang Liang back in the evening.

Originally, the two of them planned to go back to their alma mater, but it was too blocked, so they hurried back and added WeChat to each other before leaving.

On the way back, Bai Song drove the car, watching Wang Liang chatting happily on WeChat, taking advantage of the traffic jam, Bai Song glanced at Wang Liang's mobile phone: "How many years older are you than the little girl?"

"Five-year-old, what's wrong?" Wang Liang replied casually, and then was stunned for a second: "??????"

"What did you say?" Bai Song looked at Wang Liang with a question mark on his face.

"What's wrong with you, tricking me?" Wang Liang was angry: "Who do you think of me as?"

“。。。。。。 ”

"You!" Wang Liang was angry, put his mobile phone aside, and then saw the chemistry book on Bai Song's car, and didn't know if it was to relieve the embarrassment, so he said directly: "Don't be with your general knowledge, read books and read books." ”

The sky was dark, and the lights on Bai Song's car were better than nothing, and Wang Liang actually looked at the book.

The corners of Bai Song's mouth have not been lowered. Ma Ningning is very cute, although he is a child from the mountains, but his eyes are extremely smart, although he still looks a little rustic now, but as long as he polishes it in college for a year, it is definitely at the school flower level, no wonder Wang Liang is a turtle... Well, there's nothing wrong with that, isn't buddy just for complaining.

"Okay, I don't know if the book is reversed. Bai Song glanced at Wang Liang, only to see that Wang Liang hurriedly changed the book, and in the process of swapping, he found that he had not taken the wrong direction at all.

"Hmm..." this time, Wang Liang slowed down for five or six seconds before he sat down and stared at the long dragon in front of him: "At this speed, when will I be able to go home?"

Bai Song didn't care that Wang Liang deliberately diverted the topic, he was not a gossip person, "Looking at this, it is estimated that it will be eight or nine o'clock in the evening to go home." ”

"I used to study in the university, and I never drove from here, but now I know..."Wang Liang seemed to be very satisfied with Bai Song's attribute of not gossiping: "Go back in a while, I'll invite you to dinner." ”

"Okay", Bai Song accepted it calmly.

"Ha", Wang Liang was very happy: "Why do you still have this book? And I look at it, it seems that I am still a girl who has taken a lot of notes?

Before Bai Song could answer, Wang Liang gossiped first: "No, Zhao Xinqiao didn't study law? Who are you? I can tell you, you can't be half-hearted." “

"How are you chemistry?" Bai Song didn't answer Wang Liang's question.

"Ha, I studied inorganic chemistry in college, but we majored in engineering. Wang Liang felt good about himself, looked at it carefully, looked at it for the first time, and said: "This is the textbook when I was in school, my test score..."

"What is this?" Wang Liang opened a few pages, then looked at the book cover again: "This is inorganic chemistry??? this note reads... PO4 tetrahedron and VO4N trigonal bipyramidal form novel V/P/O inorganic helical chains by alternating the arrangement of shared oxygen atoms..."

Wang Liang looked confused after reading it, "Brother, tell me, is this really inorganic chemistry?"

"Hmm... Didn't you say it later, what kind of chain is inorganic? Bai Song made up: "Anyway, it's not out of inorganic chemistry, right?" ”

"Okay. Wang Liang continued to glance at it a few times, "Okay, I'm sure you don't have any gossip, the person who wrote this note is estimated to be ten years older than you... It's strange, how could a big guy use this kind of book to take notes..."

......

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