Personally, I feel that a series of books on Chinese, Mathematics and English are better, and these topics are very classic examination questions. Very representative and forward-looking, suitable for students near the senior high school entrance examination, and it also presents very detailed answers, and the steps and ideas of each question are written very succinctly. Suitable for helping students fully understand this topic, with moderate difficulty. Questions that may be slightly more difficult account for a larger proportion, so they are more suitable for top students to do. Moreover, it can also help students to consolidate their foundation while doing problems, and draw inferences from others to check for missing parts.