Doctors sometimes have difficulty diagnosing viral pneumonia : GMAT Sentence Correction (SC)
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# Doctors sometimes have difficulty diagnosing viral pneumonia

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Doctors sometimes have difficulty diagnosing viral pneumonia [#permalink]

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25 Dec 2008, 14:07
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Doctors sometimes have difficulty diagnosing viral pneumonia because the early symptoms of this potentially deadly illness are often quite similar to the common cold.

a) are often quite similar to the common cold
b) often resemble that of the common cold
c) are often quite similar to those of the common cold
d) are often quite similar to the common cold's symptoms
e) quite often are, like the common cold, similar
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25 Dec 2008, 14:23
llcooljayce wrote:
Doctors sometimes have difficulty diagnosing viral pneumonia because the early symptoms of this potentially deadly illness are often quite similar to the common cold.

a) are often quite similar to the common cold
b) often resemble that of the common cold
c) are often quite similar to those of the common cold
d) are often quite similar to the common cold's symptoms
e) quite often are, like the common cold, similar

A is wrong compares symptoms to common cold

B uses resemble and changes meanings

D uses possessive form.

E is awkward.

C is better compared to D as it is concise.

Hence C
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25 Dec 2008, 21:22
Between D and C, C is better as "cold's symptoms" in D does not seem right. This form is applicable only for proper nouns.
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26 Dec 2008, 18:20
The OA is C

This is a parallel comparison error. To make this sentence correct, we need to compare the 'symptoms' of one illness to the 'symptoms' of the other.

If we look at the answer choices, we can eliminate choices A and E because neither makes any attempt to compare symptoms to symptoms. Choice B looks promising because it uses the replacement pronoun 'that'; however, 'symptoms' is plural and therefore can't be replaced by the singular 'tat'. Choice D seems promising because it looks like it's trying to compare symptoms to symptoms - but if you look more closely, you'll notice that the last word of choice D is 'symptom', which is singular. The correct answer is C

Re: SC: Doctors   [#permalink] 26 Dec 2008, 18:20
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