大全 sec10-15 (沒人問過!快考了!拜託大家)

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我爱周末

我半同意jandjshi的观点。 好象在ETS中，如果状语从句是两个并列句，而且他们的谓语相同，可以省去后句的动词。 我在大全中找到的例子如下：

大全139

As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has vastly increased

1.        As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have vastly increased.

(A) the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have

(B) the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has

(C) the chips’ circuits are more complex, both the power of the chips and the electronic devices they drive has

(D) their circuits are more complex, the power of both the chips and the electronic devices they drive have（B）

(E) their circuits more complex, both the power of the chips and the electronic devices they drive have

OG对C的解释是： C, is eliminated as 'their' is wrongly used , as 'both a and b ... has' is wrong, as the 2 things compared (power and devices ) are not parallel, and as the "are" does not parallel "have become ". "have become" was taken out to avoid redundancy. You can put it back.

NN帮忙总结啊！