The Handbook of Important and Difficult Points is a set of supplementary books published by Huazhong Normal University Press, and the editor-in-chief of this series is Wang Houxiong. Look at this lineup and you will know that it is the same root as the "test center". So after evaluating the "test center" at that time, I thought about going all out to evaluate the "important and difficult points". The reason for not doing this is that evaluating the same brand of teaching for two consecutive periods is suspected of advertising, so I give up.

In fact, the handbook and test center are not only as simple as brothers and sisters, but also to the degree of brothers. Take mathematics as an example. Several editors-in-chief of the two series are all the same people. For example, in the handbook of important and difficult points, 5 volumes of compulsory mathematics for teaching A people and 2-2 volumes of elective mathematics for test sites are edited by teacher Wang. Other subjects are not compared one by one, and the guess is similar. In addition, the key and difficult manual also adopts the classic "left and right columns" format of Wang Houxiong, and the two series are almost the same in style and style.