某地区为调查中、小学生近视率以及在不同年级、城乡中的分布状况，在全区60所中、小学中进行抽样调查。较合理的抽样方法是（） -题库考试答案搜索网

某地区为调查中、小学生近视率以及在不同年级、城乡中的分布状况，在全区60所中、小学中进行抽样调查。较合理的抽样方法是（）

单选题

2021-12-30 14:58

A、采用整群抽样的方法
B、采用分层抽样的方法
C、先整群抽样，再分层抽样
D、先分层抽样，再整群抽样
E、以上均不对

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正确答案

D

试题解析

标签：流行病学预防疾控微生物检验技术妇女保健(医学高级)

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