试题与答案

出现单个流行高峰后,接着出现一批病例,在流行曲线上形成一个尾巴、这往往是由于() A

题型:单项选择题

题目:

出现单个流行高峰后,接着出现一批病例,在流行曲线上形成一个尾巴、这往往是由于()

A.共同媒介传播后继之以接触传播

B.接触传播后继之似共同传播

C.通过接触疫水传播

D.通过接触生物媒介传播

E.生物媒介传播和接触疫水传播同时存在

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A

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