GRE Reading Comprehension: JiJing 352-GRE阅读机经352篇 - 1G7MBVQD4HBK5VLKJ

According to the passage, incomplete combustion is more likely to occur with gasoline than with an alternative fuel because A. the combustion of gasoline releases photo-chemically active hydrocarbons B. the combustion of gasoline involves an intricate series of reactions C. gasoline molecules have a simple molecular structure D. gasoline is composed of small molecules. E. gasoline is a carbon-based fuel