《中小学数学》(小学版)2008年第11期余志军的《这个思考题有歧义》,2009年第12期韩惠芳的《对“歧义”的思考》。两文中都谈到了那位学生提出的“歧义”问题。在此笔者也谈谈对这个思考题的“歧义”问题的看法和认识。原题为:“在一个圆柱形储水桶里,把一段半径5厘米的圆钢全部放入水中,水面就上升9厘米;把圆钢竖着拉出 ”Elementary and Secondary Mathematics“ (11th Edition) 2008-11 Yu Zhijun’s ”This question has the ambiguity,“ 2009 the twelfth of Han Huifang’s ”right“ ambiguity ”thinking. Both men talked about the student’s “ambiguity” question. Here, I also talk about the thinking and understanding of the “ambiguity” issue. Original title: "In a cylindrical bucket, a radius of 5 cm round steel into the water, the water rose 9 cm; the bar out of the vertical