流行性乙型脑炎的临床发病多呈散发性,其原因主要是A.隐性感染B.预防接种C.虫媒传播D.灭蚊、防蚊工作E.人群易感性

作者: rantiku 人气: - 评论: 0
问题 流行性乙型脑炎的临床发病多呈散发性,其原因主要是
选项 A.隐性感染 B.预防接种 C.虫媒传播 D.灭蚊、防蚊工作 E.人群易感性
答案 B
解析

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