? Wu Zhongxiang's lectures can be said to be balanced at both ends, emphasizing concepts and having certain problem-solving methods (of course, you must have a certain foundation in advanced mathematics). The most important thing is that he can point out the classic mistakes for you, which is especially liked by the proposer. Which side of the exam is vague, and the lecture video is full of dry goods. As long as you listen carefully, it is easy to avoid these minefields and the concept can be further strengthened. Wu Zhongxiang can understand every mistake made by students, and you don't care at all.

No matter which teacher you learn from, you learn from yourself. Sometimes it is not necessarily how powerful the teacher is, but what he understands and understands instantly.

I want to remind you that you should brush more questions in the postgraduate entrance examination. Don't rely too much on video. Just watching the video without doing the problem will make you think that watching the video will do the problem, but it won't. It will be very unfavorable to do the real questions later.