1. The Golden Edition Osei Course is divided into two volumes: Grade One and Grade Two by Zhejiang University Press. The first two volumes of senior high school comprehensive volume are edited by Liu Kangning, and the last volume is edited by Zuo. This is more suitable for students who have just started to learn Olympic Mathematics. They have just finished learning high school knowledge and can gradually transition from senior one to comprehensive high school.

Second, Wu, editor-in-chief of "Sprint the National High School Mathematics League", Zhejiang University Press; Suitable for the last 1-2 months before the exam;

Third, Zhou Peigeng and Wang, editors-in-chief, Shanxi Education Press, The Complete Book of Solving Mathematical Olympiad Problems in Senior High School; This is for students who have a certain foundation, that is, students who have studied for a period of time.

If I say it, I can use the first book at the same time, and it is difficult to choose the college entrance examination. I am familiar with the problem-solving methods of high school questions and master the basic skills, which may have better results (this is only my method)