问题
单项选择题
引起硅肺最主要的是
A．10μm的硅尘颗粒．
B．8μm的硅尘颗粒
C．6μm的硅尘颗粒
D．4μm的硅尘颗粒
E．1～2μm的硅尘颗粒
答案
参考答案：E
解析：硅肺，小于5μm的硅尘颗粒可以进入肺泡引起硅肺，但是引起硅肺最主要的是1～2μm的硅尘颗粒。
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引起硅肺最主要的是
A．10μm的硅尘颗粒．
B．8μm的硅尘颗粒
C．6μm的硅尘颗粒
D．4μm的硅尘颗粒
E．1～2μm的硅尘颗粒
参考答案：E
解析：硅肺，小于5μm的硅尘颗粒可以进入肺泡引起硅肺，但是引起硅肺最主要的是1～2μm的硅尘颗粒。
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