分段收费问题是近年不少地区中考数学出题的热门问题,2013年福建省泉州市晋江市中考数学试卷第24题就是之一.遗憾的是这道题受固有模式的影响,由于设计不当而给出了一个错误的答案.题目如下:为了让市民树立起“珍惜水、节约水、保护水”的用水理念,某市从2013年4月起,居民生活用水按阶梯式计算水价,水价计算方式如图所示,每吨水需另加 Section fees is a hot topic in many areas of mathematics test in recent years, one of the 24 questions Jinzhou City, Fujian Province in 2013. Unfortunately, this issue is subject to the inherent mode of design, due to improper design And gives a wrong answer. The title is as follows: In order to allow the public to establish a “cherish the water, save water, protect the water,” the water concept, a city from April 2013 onwards, , Water price calculation method as shown, additional water per tonne