题目内容
(请给出正确答案)
[单选题]
在油气集输生产处理过程中必须严格遵照一下标准执行:硫化氢浓度超过()应立即撤离,并采取相应防护措施。
A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.150mg/m3(100ppm)
D.75mg/m3(50ppm)
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A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.150mg/m3(100ppm)
D.75mg/m3(50ppm)