1, the course of learning the chief motif is wider than that of the advanced motif. Xue Kui's motif covers the multi-disciplinary basic knowledge of senior high school mathematics, divides the core test sites into thematic modules, and abstracts and summarizes the types of common and required questions. The motif with high figure is only suitable for postgraduate entrance examination.

2. There are more teachers who learn the main melody than those who learn the high-key melody. Besides lecturers, Xue Kui motif has 38 special-grade teachers, 42 senior teachers and 32 senior teachers.