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As the etched lines on computer memory chips have become

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Manager
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Joined: 14 Nov 2008
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As the etched lines on computer memory chips have become [#permalink]

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New post 20 Nov 2008, 04:56
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
(E) their circuits more complex, both the power of the chips and the electronic devices they drive have

IMHO.. ADE are out because the subject is the power..which will take have..
out of B& C, B is better..because..the chip's circuits are more complex is is not parallel to " have become thinner".
Please explain.

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Re: chip's circuit [#permalink]

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New post 28 Nov 2008, 05:53
Agree, B is the only correct construction

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Re: chip's circuit [#permalink]

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New post 28 Nov 2008, 11:50
Agree with B as well.

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Re: chip's circuit [#permalink]

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New post 28 Nov 2008, 11:57
B should be correct.

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Re: chip's circuit   [#permalink] 28 Nov 2008, 11:57
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As the etched lines on computer memory chips have become

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