进行患病率调查时、受检人数不应低于应检人数的A．80％B．90％C．95％D．85％E．99％

作者: rantiku 人气: - 评论: 0

问题进行患病率调查时、受检人数不应低于应检人数的

选项 A．80％ B．90％ C．95％ D．85％ E．99％

答案 C

解析

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