试题与答案

某工厂进行接触粉尘与尘肺关系的队列研究得知,该工厂工人尘肺年死亡率为0.48‰,接触

题型:单项选择题 共用题干题

题目:

某工厂进行接触粉尘与尘肺关系的队列研究得知,该工厂工人尘肺年死亡率为0.48‰,接触粉尘与不接触者的尘肺死亡率分别为0.89‰和0.06‰。根据此资料:

AR%为()

A.90.00%

B.93.26%

C.92.50%

D.87.50%

E.50.26%

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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