Tsinghua takes math one. As far as postgraduate entrance examination is concerned, it is a very difficult thing in itself. If you only grope by yourself, you must be extremely energetic and prepare hard for the exam. Of course, if you have a clear understanding of the information of the school you are applying for, such as the style of the tutor and the characteristics of the proposition, the exam will probably focus on the difficulties and knowledge points. If the method is right, it is not difficult to test. I suggest you consult the education authority.

I will provide you with more review methods and experience. Puzzlement of postgraduate entrance examination, let a professional consultant guide you. As for the diamond class circulating in the market, many people's comments seem to be not very good. It is also a matter of opinion. Believe that what I recommend must be objective and true. You can leave me a message or email if you are interested.