Tracing back to the motif of Wang Houxiong: Tracing back to the motif of Wang Houxiong is mainly to sort out and summarize the knowledge points and analyze the key points, difficulties and test sites of the exam. It takes subject knowledge points as clues, systematically sorts out the connections and differences between knowledge points, and helps readers master the basic framework and key contents of the subject. At the same time, it also pays attention to the analysis of typical examples and the summary of problem-solving skills, which helps readers improve their problem-solving ability and test-taking level.

Learning the list of chief motifs: Learning the list of chief motifs pays more attention to the classification and analysis of various types of questions and the guidance of problem-solving methods and skills. Based on the real questions over the years, it classifies and sorts all kinds of questions, summarizes the problem-solving methods and skills of all kinds of questions, helps readers improve the efficiency and accuracy of problem-solving, and also provides corresponding exercises and answer analysis for each question, which is convenient for readers to evaluate themselves and consolidate and improve.