The price of the required questions is relatively low, and then the questions inside are better summarized and the difficulty is relatively simple. If it is for an exam, it is usually recommended to brush the questions. However, for preparing for the senior high school entrance examination, we should pay more attention to improving the subject quality and comprehensive ability, so it is best to have five or three books.

The compulsory questions in junior high school are almost as difficult as 53, simple and suitable for preview. The use of real questions and classic simulation questions in the senior high school entrance examination is more representative, and the core thinking training questions are not simple, which can be used as promotion and promotion.

53' s analysis and answers are comprehensive and accurate. A very important principle to measure the damage of a teaching aid is to see whether the analysis is accurate and complete.

The overall difficulty of the required questions is similar to that of 53, but the individual questions of the required questions will be caught in the ordinary questions, which makes them feel awkward. The analysis is not as clear as five or three points.