问题
单项选择题
不能用启普发生器制取的气体是()。
A.H2
B.Hcl
C.)H2S
D.CO2
答案
参考答案:B
不能用启普发生器制取的气体是()。
A.H2
B.Hcl
C.)H2S
D.CO2
参考答案:B
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