If you think so, there are two possibilities. One is that the foundation is very poor, and I want to rely on real questions to help me improve quickly. One is that the foundation is very good and I don't want to review it systematically.

If it is the former, I'll give you a suggestion. Don't do this. The mathematical problems of graduate students are ever-changing, and there is no fixed model at all (it is completely different from English, if it is English, you only need to study the real problems). Every year's questions, regardless of size, are very different, although the main knowledge points are still being repeatedly investigated.

Basic skills are not accumulated by doing real questions, but need systematic review+doing questions to consolidate.

Try every means, although it is not difficult to take the postgraduate entrance examination, but never do real questions to find knowledge points.

If it is the latter, the foundation is very good, and the school is not particularly good. This is understandable.

It can save a lot of time, and the result is not necessarily unsatisfactory. So, I agree.