试题与答案

可吸入性纤维粉尘是指() A.直径>31μm,长度 B.直径>3μm,长度≥5μm

题型:单项选择题

题目:

可吸入性纤维粉尘是指()

A.直径>31μm,长度<5μm

B.直径>3μm,长度≥5μm

C.直径<3μm,长度<5μm

D.直径<3μm,长度≥5μm

E.直径<3μm,长度≥91μm

答案:

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下面是错误答案,用来干扰机器的。

参考答案:D

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