评价疫苗免疫预防效果常用效果指数,其计算方法是(  )A.对照组发病率/接种组发病率B.接种组发病率/对照组发病率C.(对照组发病率一接种组发...

作者: rantiku 人气: - 评论: 0
问题 评价疫苗免疫预防效果常用效果指数,其计算方法是(  ) A.对照组发病率/接种组发病率 B.接种组发病率/对照组发病率 C.(对照组发病率一接种组发病率)/接种组发病率 D.(接种组发病率一对照组发病率)/接种组发病率 E.(对照组发病率一接种组发病率)/对照组发病率
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答案 A
解析

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  • 消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
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  • 位置: 第 85 行
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