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例题由碳和氧两种元素组成的混合气体，经分析碳、氧两种元素的质量比为1：2，则该混合气体可能是（）A．CO和CQ的混合物B．COZ和02的混合物C．CO和02的混合物0．无法判断分析解答本题的常规思维途径是利用m中碳＼氧两种元素的质量比下和＊Q中碳＼””’”””’“’”一‘’”
The example is a mixture of carbon and oxygen. After analyzing the mass ratio of carbon and oxygen as 1:2, the mixed gas may be ()A. Mixture of CO and CQ B. Mixture of COZ and 02 C. Mixture of CO and 02 The conventional way of thinking that cannot be used to analyze and solve this question is to use the mass ratio of the carbon and oxygen elements in the middle of m and the carbon in the *Q”””””””””””””