I suggest starting with the little problem here. You can try to practice small questions crazily, and butterflies must brush small questions. They are all very good teaching AIDS. Personally, I like Butterfly's books very much, and many of them have been used. His required questions and real questions are very good, and his knowledge points are comprehensive. They are all written by famous teachers, including college entrance examination questions and simulation questions. The whole book surprised me, and the answers were particularly detailed. Even thicker than the text of a single book. It is rich in content and the cover is beautiful and generous. Compared with other teaching AIDS in the world, the color is more vivid and vivid.
Because the knowledge inside is comprehensive, it is especially suitable for students who lack basic knowledge. You can also try butterfly notes, which are all dry goods with knowledge points. Especially suitable for consolidation and review, the above knowledge points are very comprehensive, and it is more effective to use with textbooks. Combing knowledge points, comprehensive analysis of test sites, explanation of questions, and summary of answering methods.