用以说明两均数差异有极显著意义是 A.p≤0.05 B.P=0.05 C.P<0.0 发布时间:2018-04-19 02:01 │ 来源:www.tikuol.com 题型:单项选择题 问题: 用以说明两均数差异有极显著意义是A.p≤0.05B.P=0.05C.P<0.05D.P>0.01E.P≤0.01
题型:单项选择题 Usually E-mail is_________ than long-distance calling.A.more cheapB.more cheaperC.most cheapD.much cheaper 查看答案