选择题的解题策略解选择题,一要会想,二要少算.数学选择题,都是四选一,其中必有一项正确,若不关注选项,小题大做,把选择题做成了解答题,会大大增加解题难度.解选择题的基本原则是“小题不用大做”.基本策略是:要充分利用题设和选择支两方面所提供的信息作出判断,一般来说能定性判断的,就不必采用复杂的定量运算;能使用特殊值判定的,就不必采用常规解法;对于明显可以否定的选项,应及早排除,以 Multiple choice questions, one should think, two less. Math choice, are one of four options, of which there must be a right, if not concerned about the options, make a fuss, the multiple choice questions made the answer , Will greatly increase the difficulty of solving the problem.The basic principle of the solution to the multiple choice is "The basic principle is: to make full use of the information provided by the two aspects of the problem and choose to make judgments, in general can Qualitative judgment, you do not have to use complex quantitative operations; can use the special value of the judge, you do not have to use the conventional solution; for obviously negative options, should be excluded as soon as possible to