1. Advanced Mathematics (Volume I and Volume II) Exercises and Solutions: This is a set of classic advanced mathematics exercises with moderate difficulty, covering all the knowledge points of advanced mathematics in freshmen, and suitable for beginners to practice.
2. The Problem Set of Advanced Mathematics (Volumes 1 and 2): This problem set is written by many famous mathematicians, and the topic is difficult, which is suitable for students with a certain mathematical foundation to challenge and improve.
3. "Analysis of Advanced Mathematics Exercises": This book not only provides a large number of exercises, but also analyzes and explains each topic in detail to help students understand and master the problem-solving ideas.
4. Selected exercises of advanced mathematics: This book has selected some classic advanced mathematics topics with moderate difficulty, which is suitable for beginners to consolidate and improve.
5. "Advanced Mathematics Problem Set" (Volumes 1 and 2): This problem set is written by many famous mathematicians, and the topic is difficult, which is suitable for students with a certain mathematical foundation to challenge and improve.
In addition to the books recommended above, you can also refer to the exercises in the textbook and after-school exercises, which are good practice resources. In addition, you can participate in some math competitions or join math study groups to discuss and solve problems with other students and promote each other's progress. The most important thing is to understand the ideas and methods of solving problems, not just memorizing the answers. Through constant practice and thinking, I believe your math level will be greatly improved.