There is no corresponding reference book, but you can go to the graduate school of Chinese Academy of Sciences or the enrollment information of the college you want to apply for and find its examination outline. I've seen it. It's not the same as the number two. The number two has no probability statistics, but both higher mathematics A and B have probabilities. I suggest you review with the standard of number one, but when practicing, you can do the real questions of number two if you have the ability. Then, I regret to tell you that the real questions of high numbers A and B are not very good.