In the part of advanced mathematics, Chen Wendeng's review guide is recommended. Everyone reflects that Chen Wendeng's book is not based on basics, but only technical, but it depends on skills, such as the operator method when he talks about differential equations. It feels good (some people say that the postgraduate entrance examination does not recognize the operator method, which was compiled by Chen himself. Later, Chen asked the teacher to verify it. The method is not important, just work it out.

The linear algebra recommended by Li Yongle is to master the essence and concept of linearity. When Li talks about linearity, he will tell you the concept of ink painting nature over and over again (well, Mr. Li (. ﹏。 *) I was wrong ... Bless me for passing the math exam = =) I benefited a lot.

As for the probability, I don't particularly recommend it, but everyone says Yao's is good. You can check it out.

To sum up: Chen Wendeng's review guide (see the high number part)+Li Yongle's linear algebra course (very thin, it seems that there is no pressure and confidence is greatly increased).