When I was studying, I used Huanggang Junior Champion. After all these years, it still stands. It must be reasonable. If it's for Xueba, I recommend Huanggang Little Champion. The advantage of the midpoint in the book is that the midpoint in the book is more suitable for students with good foundation and high test scores. Diandian is a famous supplementary teaching material edited by Rong and has become one of the favorite teaching materials for teachers, parents and students. Annual sales hit a record high. Students with good academic performance are more suitable for using electricity. Disadvantages: because the topic is more difficult. It is worth mentioning that its title part is innovative, and then the special papers in the paper are good, and there are also error-prone topics. Especially in mathematics and physics, the questions are difficult, selective but aggressive, which is very helpful for high scores. But there are not many questions, the focus is on improving ability, which requires a good grasp of the foundation, so how about the points in the book? In fact, I think it's ok, but the topic of physical chemistry is a bit difficult, but there are also basic exercises in the book to consolidate what I learned that day, which is still helpful to improve my grades. In fact, there is no difference between good and bad teaching AIDS, and using them well is the most important thing.