Su Ming (o_o): "How do I design an aircraft engine"

"Is this book OK?" Liu An's desire for knowledge was very strong.

Su Ming (o_o): "Common Knowledge of Mechanical Parts"

This is a book sold by a mechanical engineering guy!

No, what hard-core knowledge is Liu An interested in? Is he so strong in survival? Are you ready to learn a piece of mechanical skills just in case?

"An An... If you want to understand these science and engineering books, you have to learn a lot of knowledge about mathematics, physics and chemistry. I'll tell you, look at me? What I fear most from high school to college is mathematics. Oh, when it comes to advanced mathematics, it's really unbearable to look back on..."

Su Ming had several college classmates who failed the mathematics class for a while and later failed the degree certificate. Later, they didn't get a job and it was difficult to talk about the past. After all, Liu An finally changed his interest and did not continue to find these books that require a lot of basic knowledge of mathematics, physics and chemistry.

Three piles were slowly zipping on the ground. But Liu An didn't have Su Ming's eyesight, and only piled up a pile in the same time. She continued to search. Su Ming realized the problem: "No, I can't look for it anymore. No matter how much I raise it, I can't lift it. There is no special bookshelf at home."

"It's easy to lift!" Liu An's mentality was completely different, "I have money!"

Su Ming stared at Liu An in a daze, "Give you money back... You really have money now..."

However, thinking that the second-hand bookseller that Boss Wang said might be coming in a few days, he gritted his teeth and continued to search.

I don’t know how long it took, but Wang Weifeng’s shocked voice rang at the door: “Are you… going to set up a stall?”

Su Ming smiled awkwardly and said, "It's really not true. Is it okay to buy it and see it... Isn't it okay?"

"...I thought you would be almost done if you bought a dozen or twenty books..." Wang Weifeng looked at the five stacks of books on the ground, and looked at them for a few rough times. He couldn't help but say in embarrassment, "You are educated and have good eyesight... You pick out so many good books in one go, and there are not many second-hand books that are easy to sell. Looking back, I will give me the price."
Chapter completed!