You haven't studied it. I think you should sign up for a remedial class. From the beginning of basic learning, the math score is 150, otherwise it will be a great result if you don't learn well. As for the version,

Mathematics: Advanced Mathematics, Linear Algebra, Probability Theory, Tongji University Press.

6 12 advanced mathematics:

Advanced Mathematics, Volume I and Volume II, Sichuan University Press;

Advanced Mathematics, edited by Sheng Xiangyao, Department of Mathematics, Tsinghua University, Higher Education Press, 1985

There are other versions, all of which are used by Sichuan University. Specifically, you can directly find "grasping the road-postgraduate entrance examination-network".