含CO、N2、H2、CO2和水蒸气的混合气，依次通过NaOH 溶液、灼热的CuO和浓硫酸
侯英超 |
发布日期：2010-06-26 09:45:08
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含CO、N2、H2、CO2和水蒸气的混合气，依次通过NaOH 溶液、灼热的CuO和浓硫酸，最后剩下的气体是（ ） A. N2和CO2 B. N2和H2 C. N2和CO D. 无任何气体 |
