客观题以其“小、灵、快”的特点深受一些命题者和解题者的喜爱,但命题者为了提高试题的区分度,在一些试题中,常常会有意识地设置一些关口、障碍甚至是陷阱,令解题者在不知不觉时进入其中难以自拔,从而导致客观题得分率不高的现状,而要改变这种现状,在数学解题中就必须能寻找出 The objective question is favored by some propositionalists and solvers because of its characteristics of “smallness, spirituality, and quickness”. However, in order to improve the differentiation of the questions, the propositionalists often set some junctures and obstacles even in some questions. It is a trap that makes it difficult for the solver to enter the room unconsciously, which results in a low objective scoring rate. To change this situation, it must be able to find out in mathematical problems.