Summarize the types of wrong questions. In fact, the types of questions in the college entrance examination are determined by several categories. You summed up the steps to solve each kind of problem. Basically, there is a fixed problem pattern. Then you clearly know what the steps are to solve the problem, what to ask first, what to ask later, what to do well, how to understand a problem, and then look for similar problems. Do a few questions to consolidate it.