试题与答案

构成传染病流行过程的三个基本条件是A.传染源、传播途径、易感人群B.微生物、媒介、宿

题型:单项选择题

题目:

构成传染病流行过程的三个基本条件是

A.传染源、传播途径、易感人群
B.微生物、媒介、宿主
C.病原体、环境、宿主
D.病原体、人体和他们所处的环境
E.病原体的数量、致病力、特异定位

答案:

参考答案:A

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题型:填空题

短文填词。

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    At half past 3,the alarm clock made a   4   noise. He got up in a hurry and t   5   on  the light. After k  6   what time it was , he s  7   at his wife and asked her to make an explanation(解释). "Hmm,"she

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1.                2.                3.              

4.                5.                6.              

7.                8.                9.              

10.              

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