浙教版八年级上册数学(2013年7月第2版)第66页例1是:说出定理“线段垂直平分线上的点到线段两端的距离相等”的逆命题,并证明这个逆命题是真命题.文[1]中作者认为这道题可能产生歧义,有问题,并作了详细的论述,最后提出了自己的建议.这种认真钻研教材,敢于质疑教材的精神值得学习,但笔者认为上述题目没有问题,文中的一些观点笔者也有不同的看法,下面不揣浅陋地谈一谈,一、疑中生疑关于“等角的余角相等”的逆命题,原文认为有以 Example 1: Say the inverse of the theorem “The distance from the point on the line perpendicular bisector to the two ends of the line segment ” and prove this The inverse proposition is a true proposition. [1] The author believes that this issue may be ambiguous, problematic, and made a detailed discussion, and finally put forward his own proposal .This serious study materials, the courage to question the spirit of the textbook is worth learning , But I think there is no problem in the above questions, some of the views in this article I have different views, the following do not humble talk about, a suspect suspect about the “equal angle” equal part of the inverse proposition, the original view There is