自高考题中出现抽象函数以来,利用抽象函数的性质解题的内容也大量出现在刊物和资料上,其中有不少好题,但也有些题在对一类具体函数的共同性质的抽象中,由于对具体函数的性质的“增、失”上有模糊认识,造成了编题或解题中的失误.下面仅举几个例子加以辨析 Since the abstract function appeared in the college entrance examination, the use of abstract features of the nature of the problem-solving content also appeared in a large number of publications and information, of which there are many good questions, but also some questions in a common class of specific functions abstraction , Because of the nature of the specific function “increase, loss, ” on the fuzzy understanding, resulting in a problem or solution to the problem. Here are just a few examples to be resolved