4067

1 The six gases are: carbon dioxide CO2, methane CH4, nitrous oxide N2O,hydrofluorocarbons HFC, perfluorocarbons PFC and,

4067Tag内容描述：

1、1 The six gases are: carbon dioxide CO2, methane CH4, nitrous oxide N2O,hydrofluorocarbons HFC, perfluorocarbons PFC and。