Longmen project is suitable for students above secondary level. According to the relevant public information, Longmen Special Topic is developed for students above the medium level, especially top students. Longmen Special Topic is a necessary book. 2. What should secondary school students pay attention to when using "Senior High School Mathematics (Series of New Curriculum Standards)"? This set of books aims to fully implement the step-by-step learning method. Intermediate level students should pay special attention to: the analysis and application of knowledge points focus on consolidating students' foundation and explaining the basic knowledge in detail and thoroughly, which is suitable for intermediate level students to consolidate their foundation. The ability development part focuses on expanding students' thinking, which is directly in line with the difficulty and questions of the senior high school entrance examination, and is suitable for middle school students to improve their grades.