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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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from this example, you can learn that 'as well as' is not strictly a parallel marker.incidentally, in the official correct sentences, i've never seen 'as well as' followed by anything other than a noun. (remember that '__ing' can be a noun; that's the role played by 'emitting' here.)
i wouldn't elevate this to the status of a 'rule', since as well as is also widely used to connect other things, such as adjectives (His review was insightful as well as thorough).
on the other hand, i am comfortable positing these two things:
• don't follow 'as well as' with a verb
• be suspicious of any choice in which 'as well as' is followed by something other than a noun. (if you can't see any other reason to eliminate, use this as a guessing method.)
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