1, rich examination materials: "Key Middle School has an appointment with you" is a classic series of books in middle school teaching, which contains a large number of test questions and exercises for the senior high school entrance examination, covering various subjects and questions with different difficulties, and is suitable for the study and preparation requirements of the senior high school entrance examination.

2. The number and difficulty of questions meet the requirements of senior high school entrance examination: the matching of the number and difficulty of questions between key middle schools and senior high school entrance examination can help students to be familiar with the types and difficulty level of senior high school entrance examination, adapt to the examination environment in advance and make full preparations for the senior high school entrance examination.