Zhang Yu, Jing Tian, Wang Ji and Yang Jing. 1, Zhang Yu: chief lecturer of postgraduate mathematics, tutor of postgraduate mathematics in China, engaged in advanced mathematics teaching and postgraduate counseling for many years, the backbone of postgraduate research over the years, and the founder of project teaching method.

2. Jing Tian: Senior Teaching Trainer and English Lecturer in English for Postgraduate Entrance Examination. He has more than ten years of experience in teacher training and English teaching. Teaching in various English exams at home and abroad, especially good at helping students lay a good foundation for English learning.

3. Wang Ji: Ph.D., Peking University Institute of Marxism-Leninism, special researcher of Marxist Theory and Ideological and Political Education Research Association, with rich teaching experience, outstanding teaching focus and accurate test questions prediction.

4. Yang Jing: Master's tutor with rich teaching and lecture experience. Teaching adheres to the two-pronged approach of foundation and skills, and expounds the strategic position from a strategic point of view. The course teaching is simple and easy to understand, and is deeply loved and selected by the majority of students.