题目内容
(请给出正确答案)
[单选题]
硫化氢嗅觉阈的个体差异很大,当浓度超过()以后,继续增高时反而其臭味减弱。
A.1mg/m3
B.10mg/m3
C.30mg/m3
D.100mg/m3
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A.1mg/m3
B.10mg/m3
C.30mg/m3
D.100mg/m3
A.22mg/m3(15m3/mL)
B.72mg/m3(50m3/mL)
C.15mg/m3(10m3/mL)
D.30mg/m3(20m3/mL)
A.阈限值
B.安全临界浓度
C.危险临界浓度
D.4.3ppm以下
A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.150mg/m3(100ppm)
A.5ppm(7.5mg/m3)
B.10ppm(15mg/m3)
C.15ppm(22.5mg/m3)
D.20ppm(30mg/m3)