20 12 passed 660 questions on the basis of mathematics in the postgraduate entrance examination, with a score of one. Count to two. Count to three? When is a good time to make this book? In addition, after reviewing the whole book, the front Divided. The best one is three books, and the content of the exam is different. When to use this reference book, I think it depends on your overall review plan. The suggestion is to scan all knowledge points in the first round and lay a good foundation; The second round of block review, high number, linear algebra, probability theory, mathematical statistics, respectively; The third round starts in 65438+February, and a set of simulation questions is guaranteed for two days; 660 basic questions can be done in the second round, and some questions are quite difficult, so the exam is more detailed. Wish you success!