A.病例对照研究B.普查C.筛检D.队列研究E.抽样调查了解中国东北地区高血压病的流行状况,最适当的方法是

作者: rantiku 人气: - 评论: 0
问题 A.病例对照研究 B.普查 C.筛检 D.队列研究 E.抽样调查 了解中国东北地区高血压病的流行状况,最适当的方法是
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答案 E
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