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# Recently physicians have determined that stomach ulcers are

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Senior Manager
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Recently physicians have determined that stomach ulcers are [#permalink]

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07 Jul 2006, 09:20
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Question Stats:

83% (00:39) correct 17% (00:46) wrong based on 1198 sessions

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Recently physicians have determined that stomach ulcers are not caused by stress, alcohol, or rich foods, but a bacterium that dwells in the mucous lining of the stomach.
A. not caused by stress, alcohol, or rich foods, but
B. not caused by stress, alcohol, or rich foods, but are by
C. caused not by stress, alcohol, or rich foods, but by
D. caused not by stress, alcohol, and rich foods, but
E. caused not by stress, alcohol, and rich foods, but are by
[Reveal] Spoiler: OA

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07 Jul 2006, 09:55
I like C.

Maintains the parallelism.

verb....not X, but Y.

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07 Jul 2006, 12:19
caused "by" blah and "by" blah to maintain ||sm so left with B C and E

B has 2 problems
1) "not caused by stress but are by...." ulcers are either caused or not caused by blah-blah... wrong placement of NOT puts stress on CAUSED
2) "ulcers not caused by X but are by Y" for ||sm ARE is not necessary here

E corrects the 1st problem, but maintains 2nd

C is correct

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Senior Manager
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08 Jul 2006, 22:24
OA is C.

Thanks!
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08 Jul 2006, 22:30
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C it is.

Between B and C. C has the correct construction of "not by X, but by Y"
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09 Jul 2006, 23:54
Will go with C.

Not by X but by Y ........ maintains ||ism

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10 Jul 2006, 01:20
freetheking wrote:
Recently physicians have determined that stomach ulcers are not caused by stress, alcohol, or rich foods, but a bacterium that dwells in the mucous lining of the stomach.
A. not caused by stress, alcohol, or rich foods, but
B. not caused by stress, alcohol, or rich foods, but are by
C. caused not by stress, alcohol, or rich foods, but by
D. caused not by stress, alcohol, and rich foods, but
E. caused not by stress, alcohol, and rich foods, but are by

C.. "caused" is common.. caused not by .. caused by ..

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10 Jul 2006, 01:24
Straight C.

caused not by.......but by

Regards,
Brajesh

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11 Jul 2006, 09:51
OA is C

Thanks
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11 Jul 2006, 10:00
Very late but...

C. caused not by stress, alcohol, or rich foods, but by
||ism

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11 Jul 2006, 10:20
freetheking wrote:
Recently physicians have determined that stomach ulcers are not caused by stress, alcohol, or rich foods, but a bacterium that dwells in the mucous lining of the stomach.
A. not caused by stress, alcohol, or rich foods, but
B. not caused by stress, alcohol, or rich foods, but are by
C. caused not by stress, alcohol, or rich foods, but by
D. caused not by stress, alcohol, and rich foods, but
E. caused not by stress, alcohol, and rich foods, but are by

All are incorrect except for C. The correct form should be [participle] + not by A but by B. E.g.

My breakfast was stolen not by Laurel but by Hardy.
The poem was written not by Alex but by Joseph.

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Re: Recently physicians have determined that stomach ulcers are [#permalink]

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08 Oct 2014, 02:48
Hello from the GMAT Club VerbalBot!

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Re: Recently physicians have determined that stomach ulcers are [#permalink]

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21 Mar 2015, 00:38
This question tests parallelism issue. Not ... but idiom.
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Re: Recently physicians have determined that stomach ulcers are [#permalink]

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26 Jul 2015, 07:50
Straight away C. maintains parallelism.

A. not caused by stress, alcohol, or rich foods, but (but should by followed by "by") Wrong
B. not caused by stress, alcohol, or rich foods, but are by ("are" is extra here) Wrong
C. caused not by stress, alcohol, or rich foods, but by (not by....but by) Correct
D. caused not by stress, alcohol, and rich foods, but (need "by" after "but") Wrong
E. caused not by stress, alcohol, and rich foods, but are by ("are" is extra) Wrong
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Re: Recently physicians have determined that stomach ulcers are [#permalink]

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28 Jul 2015, 02:12
Ergenekon wrote:
This question tests parallelism issue. Not ... but idiom.

I have one question. In option B, is "are" in "but are" used as a verb? If yes, then "not caused (verb)" would be parallel to "but are(verb)" and would be correct.

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Re: Recently physicians have determined that stomach ulcers are [#permalink]

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06 Aug 2016, 02:10
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Recently physicians have determined that stomach ulcers are [#permalink]

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06 Aug 2016, 03:06
Top Contributor
rishabchoraria wrote:
Ergenekon wrote:
This question tests parallelism issue. Not ... but idiom.

I have one question. In option B, is "are" in "but are" used as a verb? If yes, then "not caused (verb)" would be parallel to "but are(verb)" and would be correct.

Almost anything in a sentence can be made parallel to a similar Parallel Element.

we know by spotting Parallel Markers(here NOT X BUT Y)—words that link or contrast items and that force those items to be parallel

"NOT Caused by.......BUT are by........" is not paralleled
"NOT Caused by......BUT caused by......" is paralleled
"caused NOT by......BUT by......" is paralled

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Re: Recently physicians have determined that stomach ulcers are [#permalink]

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17 Sep 2017, 13:09
Recently physicians have determined that stomach ulcers are not caused by stress, alcohol, or rich foods, but a bacterium that dwells in the mucous lining of the stomach.

A. not caused by stress, alcohol, or rich foods, but
B. not caused by stress, alcohol, or rich foods, but are by
C. caused not by stress, alcohol, or rich foods, but by
D. caused not by stress, alcohol, and rich foods, but
E. caused not by stress, alcohol, and rich foods, but are by
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Re: Recently physicians have determined that stomach ulcers are   [#permalink] 17 Sep 2017, 13:09
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