试题与答案

横断面分析是指A.对不同年代出生者各年龄组的发病率或死亡率的分析 B.对同一时期不同

题型:单项选择题

题目:

横断面分析是指

A.对不同年代出生者各年龄组的发病率或死亡率的分析

B.对同一时期不同年龄者的发病率或死亡率的分析

C.对同一时期同一年龄者的发病率或死亡率的分析

D.对同一时期同一性别者的发病率或死亡率的分析

E.对同一时期同一时业者的发病率或死亡率的分析

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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