Not bad. The quality of notes is very high, covering the key knowledge points and difficulties of various disciplines, as well as the analysis and analysis of real questions over the years. The writing method is concise, easy to understand and remember, which is of great help to candidates. Cai Sheng Postgraduate Entrance Examination Network is an online educational institution focusing on postgraduate entrance examination counseling, which provides a variety of learning resources including notes, video courses and simulated test questions.