Efficient learning method (the cover is Zu Chongzhi's), the explanation is quite good, the number of questions is not much, and it is quite easy to use. There are five years of college entrance examination and three years of simulation, which can also be considered. In addition, I think the complete interpretation of Xue Jinxing's middle school textbooks and Wang Houxiong's textbooks is not very good. At that time, the grades were very poor, but the efficient learning methods were very good and the physical chemistry was also very good. I appointed special teaching aids.