在做性状分离比的模拟实验时,分别同时从甲小桶和乙小桶抓取小球50~100次,统计小球 发布时间:2017-09-15 01:55 │ 来源:www.tikuol.com 题型:单项选择题 问题: 在做性状分离比的模拟实验时,分别同时从甲小桶和乙小桶抓取小球50~100次,统计小球组合为DD的比例为()A.1/3B.1/4C.1/2D.1/5
题型:单项选择题 There is ______ with the recorder. [ ]A. anything wrong B. wrong anything C. something wrong D. wrong something 查看答案