Hi, everyone, I am a monkey who loves bananas. I don’t know if any friends from Beijing are preparing to study PM at the end of 2019 and want to get a certificate, but due to the epidemic, it has been postponed until March 2021 and I cannot take the exam. I I have forgotten everything, and now I only hope to take the exam in December 2021. Because of the more than two thousand oceans that PM has studied, I still have to remember again. . . .
I don't start with the introduction now, I post a quick summary for myself. Don't ask me for xmind original format files, nor do I have them. .
Code的搬运工V1.0