In fact, both books are very good, and the specific choice should be combined with your current review level. Beyond 135 can be used as a real simulation, which is suitable for students who have a good review. If you want to test your review style, you can use this set of questions. Li Yongle's "6+2" is more suitable for students with poor foundation and weak knowledge. Only mathematics is required for the postgraduate entrance examination, so such students are advised to make a fuss first.

Other review materials for postgraduate mathematics are recommended:

1, Li Yongle Postgraduate Mathematics Review Book: comprehensive knowledge points, reasonable layout, supporting exercises and relatively basic topics, suitable for students with poor foundation.

2. "Compilation King of Mathematics Zhenti for Postgraduate Entrance Examination over the Years": It comprehensively covers the Zhenti for 30 years (1987- present), and accurately solves the Zhenti for 17 (2000- present), so it is necessary to study the Zhenti repeatedly.

3. Zhang Yu's Lecture 18: Zhang Yu's Lecture 18 and Chen Wendeng's magic weapon and mentality are suitable for careful consideration in July and August.

4. Chen Wendeng's Methods and Skills of Solving Multiple Choice Questions: Don't underestimate the single choice. If you don't do it well, you will lose time and grades and get nothing. Practice multiple-choice questions well, because there are deep doorways here.