Hello, first of all, you studied the calculus textbook published by the National People's Congress. I recommend this book. The book "The Methods and Skills of Solving Calculus" (edited by Mao) is available in the market. This book is specially written for the textbooks published by the National People's Congress. According to the types of questions, there are also detailed explanations of after-school exercises in the large version of the textbook. Can be used as a tutorial, with typical significance. Nowadays, books are generally written for postgraduate entrance examination, and there are not many real after-school exercises. I recommend some other books to you. Although it is not used for postgraduate entrance examination, it can also be used as an exercise. Generally, it is written according to calculus, probability statistics and linear algebra. Calculus is the main part. Anyway, probability statistics and linear algebra should be learned in the future, and it will not be wasted if you buy them. The following books have detailed answers, which are recommended to you: "1500 Analysis of Mathematics Required Questions for Postgraduate Entrance Examination" edited by Cai; Analysis of 500 Subjective Questions in Graduate Mathematics Edited by Cai: A Review Book of Graduate Mathematics Edited by Li Yongle and Li Zhengyuan. Welcome to ask questions to 158 Education Online.