比较身高和体重两组数据变异度的大小宜用()。A.变异系数 B.方差 C.极差 D.标 发布时间:2017-05-31 21:32 │ 来源:www.tikuol.com 题型:单项选择题 问题: 比较身高和体重两组数据变异度的大小宜用()。A.变异系数B.方差C.极差D.标准差E.四分位数间距
题型:单项选择题 Have you seen Jack recently?I wonder________with his classmates.A.how is he getting alongB.that he is getting along well C.what he is getting alongD.if he is getting along well 查看答案