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)