搜不到这两道题的讨论。请NN们帮看一下。 Q28: PP58. Diesel engines burn as much as 30% less fuel than gasoline engines of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gasses that have been implicated in global warming. A. of comparable size, as well as emitting far less carbon dioxide gas and far fewer of the other gasses that have B. of comparable size, as well as emit far less carbon dioxide gas and far fewer of the other gasses having C. of comparable size, and also they emit far fewer carbon dioxide and other gasses that have D. that have a comparable size, and also they emit far fewer of the other gasses having E. that have a comparable size, as well as emitting far fewer of the other gasses having 答案选A,我选的C。为什么是as well as doing呢,和前面burn怎么平行?还有为什么修饰carbon dioxide gas用less,后面gasses用fewer呢?不能都用fewer么? Q32: PP61. Among lower-paid workers, union members are less likely than nonunion members to be enrolled in lower-end insurance plans imposing stricter limits on medical services and requiring doctors to see more patients, and spend less time with each. A. imposing stricter limits on medical services and requiring doctors to see more patients, and spend B. imposing stricter limits on medical services, requiring doctors to see more patients, and spending C. that impose stricter limits on medical services, require doctors to see more patients, and spend D. that impose stricter limits on medical services and require doctors to see more patients, spending E. that impose stricter limits on medical services, requiring doctors to see more patients and spending答案选D,我选A。为什么不可以require doctors to see and (to) spend, 而要用现在分词spending呢?
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