Sorry, I went out a bit in the afternoon this weekend and forgot to bring the keys. As a result, it was late and I waited for another buddy in my house to come back from overtime before I could enter the house. So I hurriedly coded a chapter.,The second one really doesn't have a time code.,Please forgive me.。 The chapter that is owed will be made up for later.

I couldn't get into the house, so I could only go to the bookstall outside the community to read books, and finally picked a copy of "The History of China's Aviation Development" and took it home. In the next stage, where is the right place to start, what are your suggestions for this development, you can also leave me a message in the book friend group and the message area, I will consider and adopt the appropriate one, thank you.

I don't know if this news can make everyone a little happy. (To be continued.) )