It's June 6th, so it's better to do exercises after reading the textbook Advanced Mathematics in 30 days. I don't think it's importune. After reading the line generation and probability for 30 days, I feel that it is not importune for the first time. So it's August 6th, and then I started reading review books. At this time, I may not know anything. I was in this state at that time and went home for a few days. When I started school, I found that I knew nothing. After I persisted, the second time I focused on the conceptual exercises I didn't know, and I only repeated the exercises I knew. I didn't read the whole book, and then the real question. Pay attention to summing up the characteristics of real questions in recent years, and some things are basically not tested.