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Expert replies
by chan0922 » Sun Nov 25, 2007 7:18 pm
In large doses, analgesics that work in the brain as antagonists to certain chemical have caused psychological disturbances in patients, which may limit their potential to relieve severe pain.
A. which may limit their potential to relieve
B. which may limit their potential for relieving
C. which may limit such analgesics' potential to relieve
D. an effect that may limit their potential to relieve
E. an effect that may limit the potential of such analgesics for relieving

pls explain why you eliminate other choices





















OA IS E
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Source: — Sentence Correction |

by beingAndNothing » Sun Nov 25, 2007 8:16 pm
A,B,C - "which" refers to patients but the clause is talking about analgesics and not patients.

D - their refers to analgesics and has the correct idiom "potential to".

E - incorrect idiom "potential for"

I do not know why (E) is the correct answer.
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by chan0922 » Sun Nov 25, 2007 11:06 pm
I took this one off of the psahil's notes

i did not quite get his explanation, thats why posted it here again
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by Danielle » Tue Nov 27, 2007 2:45 pm
Beware of A,B, and C because the 'which' does not refer to anything. If it were to refer to anything it would be the effect of the analgesics, which is why you should be able to cut down the choices to D and E rather quickly. E is the only one that is entirely specific.

Although E does not seem concise, it really is because this type of scientific writing is always less concise, since it is more important to be convey precise scientific principles and research results. E is the choice that combines precise communication with as little extra language as possible.
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