幼儿教育是对()年龄阶段的幼儿所实施的教育。 A.4—5岁 B.1—6岁 C.3—7 发布时间:2018-01-31 13:47 │ 来源:www.tikuol.com 题型:单项选择题 问题: 幼儿教育是对()年龄阶段的幼儿所实施的教育。A.4—5岁B.1—6岁C.3—7岁D.3—6岁
题型:单项选择题 What happens to the efficiency of an anchor when it is moved from sand to mud?()A.The efficiency increasesB.The efficiency decreasesC.The efficiency remains the sameD.The efficiency cannot be determined. 查看答案