Is it necessary to buy senior students' professional course notes for postgraduate entrance examination?

It's up to you. In fact, if you buy a senior's notes, you can take a lot of detours through your own notes, and you know which ones are important. It's still good. Just like our current high school students also buy this kind of college entrance examination notes. You can focus on it. Of course, if you take the postgraduate entrance examination, you can know where the focus is without buying it yourself! Because you can refer to the postgraduate entrance examination in recent years. This situation. Because at the age of postgraduate entrance examination, I already know what is important and what is not.