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题库 / Prep2007E2-SC-90
Diesel engines burn as much as 30 percent less fuel than gasoline engines of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gases that have been implicated in global warming.
of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gases that have
of comparable size, as well as emit far less carbon dioxide gas and far fewer of the other gases having
of comparable size, and also they emit far fewer carbon dioxide and other gases that have
that have a comparable size, and also they emit far less carbon dioxide gas and other gases that have
that have a comparable size, as well as emitting far fewer carbon dioxide and other gases having
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1、BE "having __ed" (without a comma)不选，havedone表完成，ving现在进行，放在一起说不通；
2、as well as 作为介词，常跟n.&adj.&prep.&doing, 有主次之分；as well as 结构去掉后，句子结构仍然完整；
3、CDE carbon dioxide gas不可数名词，用less修饰；other gases 可数名词，用fewer修饰；
4、语义：【燃烧更少的化石燃料】和【释放更少的CO2】是平行关系还是主次关系，应该是主次。
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