题目内容
(请给出正确答案)
[单选题]
我国规定,工作场所空气中的硫化氢的最高容许浓度为()。
A.10mg/m3(6.7ppm)
B.15mg/m3(10ppm)
C.20mg/m3(15ppm)
D.30mg/m3(20ppm)
答案
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A.10mg/m3(6.7ppm)
B.15mg/m3(10ppm)
C.20mg/m3(15ppm)
D.30mg/m3(20ppm)