Zhang Yu can do four sets of papers. His questions are sometimes similar to exam questions, providing ideas. If you think four sets of papers are too difficult, you can make eight sets of papers. The examples of Yu Ge's eight sets of papers are all real questions, which means that the difficulty of the first eight sets of papers is similar to the real questions, so it will be more difficult in the future.

Brush more questions, practice more, grasp the basic knowledge points and do more real questions. I recommend Zhang Yu's eight sets of papers

Ms. Cheung said:

Zhang Yu, a math teacher who set sail for the postgraduate entrance examination, has been engaged in advanced mathematics teaching and postgraduate counseling for many years, and has published many papers in national core journals, one of which was selected for the "2007 Global Sustainable Development Conference".

Representative works: Lecture 18 of Advanced Mathematics for Postgraduate Entrance Examination, Lecture 9 of Zhang Yu's Linear Algebra, Lecture 9 of Probability Theory and Mathematical Statistics for Postgraduate Entrance Examination, Classic of Mathematics Sources for Postgraduate Entrance Examination 1000, etc.