题目内容
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[判断题]
天然气分级的主要指标是热值、硫化氢含量和总硫量以及纯度。()
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第3题
A.150mg/m3(100ppm)
B.135mg/m3(90ppm)
C.75mg/m3(50ppm)
D.30mg/m3(20ppm)
第8题
A.150mg/m3(100ppm)
B.135mg/m3(90ppm)
C.75mg/m3(50ppm)
D.30mg/m3(20ppm)
第9题
A.150mg/m³(100ppm)
B.135mg/m³(90ppm)
C.75mg/m³(50ppm )
D.30mg/m³(20ppm)