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[单选题]
油气集输生产处理过程中须严格遵照以下标准执行:当空气中硫化氢浓度超过()mg/m3(ppm)时应预警,并佩戴正压式空气呼吸器方可进入现场。
A.15(10)
B.30(20)
C.150(100)
D.10(15)
查看答案
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A.15(10)
B.30(20)
C.150(100)
D.10(15)
A.15(10)
B.30(20)
C.150(100)
D.75(50)
A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.150mg/m3(100ppm)
D.75mg/m3(50ppm)