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Senior Manager
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SC - Artificial Intelligence (I could use some...) [#permalink]
 24 Dec 2003, 14:22
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0% (00:00) correct
 0% (00:00) wrong based on 0 sessions
Could anyone post what's the proper use of the hyphen please?
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Manager
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C?
Not sure if Like is the correct usage.. But the rest seems OK..
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GMAT Club Legend
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The answer should be A because it draws the parrallellism between the two clauses. B is wrong because it is unclear whether "which" refers to "reason" or "expert" or what not.
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Senior Manager
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C
"Like" is the correct usage for comparing nouns - computers, expert
"whether or not" is redundant in other options
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GMAT Club Legend
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Hmmm, after your explanation, I think I'll change my answer to C as well, am I allowed? 
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GMAT Club Legend
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Well, your question about the use of the hyphen is that it draws a parrallel between the first half of the sentence and the second half:
... they will be able to make computers that can understand...
... computers that will be used to diagnose...
Like an expert must be used to compare similar pronoun
(D) and (E) do not draw this parrallellism and futhermore, in (D), it is not clear what "the use of which" refers to - does it refer to experts or computers which are used. (E) sounds as if the experts are to be used.
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