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乙烯C2H4与另一种气体混合后.C%=87%.气体可能是、
A H2 B CO C CH4 D C2H2
人气:394 ℃ 时间:2020-07-06 00:17:47
解答
∵C2H4:C%=85.7%
AH2:C%=0%
BCO:C%=42.9%
CCH4:C%=75%
DC2H2:C%=92.3%
∴选D
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