解题始于审题，审题以解题为目的．审题对于解题极为重要，因为审题准确，解题则易成功；审题不当或受挫，解题必然失败．为了顺利审题，务求方法得当．而审题方法很多，其中从题目内容的不同侧面审题，是一套经常使用的有效方法．通常，这套审题方法包含知识点分析、题类分析 The problem-solving problem begins with the examination of the problem, and the problem-solving is for the purpose of solving the problem. Examining questions is extremely important for solving problems because the problem is accurate and the problem is easy to succeed. If the problem is incorrect or frustrated, the problem will inevitably fail. In order to examine the issue smoothly, it must be done in a proper way. There are many ways to examine problems, and examining questions from different aspects of the topic content is a set of effective methods that are often used. Usually, this method of examination includes knowledge point analysis and problem analysis