题目内容
(请给出正确答案)
[单选题]
当空气中硫化氢含量超过阈限值()时,监测仪应能自动报警。
A.6.7PPm
B.10PPm
C.15PPm
D.20PPm
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A.6.7PPm
B.10PPm
C.15PPm
D.20PPm
A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.150mg/m3(100ppm)
A.10
B.20
C.15
D.100
A.30ppm
B.15mg/m³(10ppm)
C.30mg/m³(20ppm)
D.150mg/m³(100ppm)