在标准化命题中,有一类是非判断题常占很大比重,这种题目的答案只有两种可能,或对或错,无中间状态.但由于命题者的主观原因,常常使不少学生(特别是善于思维的学生)冤枉失分. “三角形中位线平行于底边并等于底边的一半”,这是有初中文化水平的人都知道的三角形中位线定理.如果有这么一个是非判断题:“三角形的中应线平行于底边”,尽管它只说出了中位线定理的一部分,但你能判断这种说法是错而给它打“×”吗?当然不能,稍有一点常识的人都会给它 Among the standardization propositions, there are one type of non-determined questions that often account for a large proportion. The answers to such questions are only two possible, either true or false, and there is no intermediate state. However, due to the subjective reasons of propositions, many students are often It is a student who is good at thinking.) The “triangle median line is parallel to the bottom edge and equal to half of the bottom edge”. This is the triangle median line theorem that is known by people of junior high school culture level. If there is such a non-judgment The question: “The median line of a triangle is parallel to the bottom edge.” Although it only speaks part of the median line theorem, can you judge whether this statement is wrong and give it a “x”? Of course not, slightly. Everyone with common sense will give it