口腔健康调查方法中没有A.普查B.随机调查C.抽样调查D.预调查E.捷径调查 发布时间:2017-12-13 09:02 │ 来源:www.tikuol.com 题型:单项选择题 问题: 口腔健康调查方法中没有A.普查B.随机调查C.抽样调查D.预调查E.捷径调查
题型:单项选择题 . He wanted to make sure __________. A.how we went there by busB.where did we goC.what did we go thereD.when we went there 查看答案