了解社区口腔健康状况时用A.普查 B.抽样调查 C.预调查 D.捷径调查 E.问卷调查

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问题了解社区口腔健康状况时用

选项 A.普查 B.抽样调查 C.预调查 D.捷径调查 E.问卷调查

答案 D

解析

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