To put it bluntly, there are always a few so-called "test gods", such as Wang Houxiong. Take Wang Houxiong as an example. It is actually a teaching aid of a big brand. I know:
First, synchronous classes (one-to-one correspondence with different versions of textbooks and courses around the country)
Complete interpretation of teaching materials (the ratio of lecture to practice is 7: 3), complete learning plan of teaching materials (focusing on practice, which can be regarded as an exercise book matching the complete interpretation of teaching materials) and complete interpretation of classes (the ratio of lecture to practice is 5: 5).
Second, the general review class
Senior High School: A complete interpretation of NMET, NMET 1 vs 1, NMET 12.
Third, others.
"600-point topic" (special study and training), "600-point problem-solving encyclopedia" (high school grades, mainly explaining the problem-solving methods), "Exam must be remembered" (booklets written with useful knowledge points in junior and senior high schools) and so on.
Each sub-series is actually aimed at different learning stages or different requirements. For example, Complete Interpretation of Textbooks is a representative one in the synchronous category, which has been sold for 15 years. Summarize the knowledge of each lesson according to the chapters of the course. Examples can be compared completely, so reading can also deepen the understanding and memory of the knowledge points in the left column. Then there is the analysis of the error-prone points in the test center, the hierarchical training questions, the summary after one unit, and the after-school problem solving and analysis of the corresponding teaching materials. This is very practical, I believe you understand.
Because Baidu knows that it can't post website links or read e-books, it can only search by itself or go to the bookstore to see what the section settings are, and it is most important to choose the one that suits you.