First, in Wang Houxiong's Complete Interpretation of Textbooks, the key and difficult test sites are distributed with distinct levels, and the examples and exercises are interpreted and analyzed in detail, with many wonderful examples and rich exercises.

The most important thing about Wang Houxiong's book is that there are many summaries of knowledge points, and there are also many interpretations of textbook knowledge, which is convenient for students to study and study independently and master the contents of mathematics textbooks in depth. The disadvantage is that most of the questions are above medium difficulty, and students with weak foundation are not suitable for use.

Second, Xue Jinxing's Complete Solution of Middle School Textbooks is almost the same as Wang Houxiong's, but Xue Jinxing's book is relatively simple, and there are not as many exercises as Wang Houxiong's.

The complete solution of middle school textbooks is based on the basic knowledge, which is not difficult, at most, the difficulty is below average, and it is more suitable for students with general basics. This book is a classic example, and it is an old-fashioned teaching material for middle schools.