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# Geologists believe that the warning signs for a major

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CEO
Joined: 21 Jan 2007
Posts: 2756
Location: New York City
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Geologists believe that the warning signs for a major [#permalink]

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27 Jul 2007, 11:24
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Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.
A. changing the measured strain across a fault zone, and varying
B. changing measurements of the strain across a fault zone, and varying
C. changing the strain as measured across a fault zone, and variations of
D. changes in the measured strain across a fault zone, and variations in
E. changes in measurements of the strain across a fault zone, and variations among

I know this is from OG11. I have not done it yet. Why is the OA D?
i thuoght the second item in a parallel structure determines the rest after it.
If you have any questions
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Manager
Joined: 08 Oct 2006
Posts: 214
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Kudos [?]: 7 [0], given: 0

Re: SC1000 #326 & OG11 Fault zone [#permalink]

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27 Jul 2007, 11:27
bmwhype2 wrote:
Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changing the measured strain across a fault zone, and varying the electrical properties of underground rocks.
A. changing the measured strain across a fault zone, and varying
B. changing measurements of the strain across a fault zone, and varying
C. changing the strain as measured across a fault zone, and variations of
D. changes in the measured strain across a fault zone, and variations in
E. changes in measurements of the strain across a fault zone, and variations among

I know this is from OG11. I have not done it yet. Why is the OA D?
i thuoght the second item in a parallel structure determines the rest after it.

D is my pick. Reason: parallelism.
D provides a clear and parallel construction.
Director
Joined: 29 Aug 2005
Posts: 875
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Kudos [?]: 387 [0], given: 7

Re: SC1000 #326 & OG11 Fault zone [#permalink]

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27 Jul 2007, 12:08
Inserting D, I have underlined the parallel sections of the sentence.
bmwhype2 wrote:
Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth's crust, changes in the measured strain across a fault zone, and variations in the electrical properties of underground rocks.
CEO
Joined: 21 Jan 2007
Posts: 2756
Location: New York City
Followers: 11

Kudos [?]: 898 [0], given: 4

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27 Jul 2007, 12:13
oh. i did not realize tilting was a gerund in this question...

this is what happens when i post 150 times a week....
Director
Joined: 29 Aug 2005
Posts: 875
Followers: 10

Kudos [?]: 387 [0], given: 7

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27 Jul 2007, 12:21
bmwhype2 wrote:
oh. i did not realize tilting was a gerund in this question...

this is what happens when i post 150 times a week....

hey, slow down a bit! you seem to be posting 24 hours a day
Senior Manager
Joined: 18 Jun 2007
Posts: 294
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Kudos [?]: 56 [0], given: 0

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27 Jul 2007, 12:40
bmwhype2 wrote:
oh. i did not realize tilting was a gerund in this question...

this is what happens when i post 150 times a week....

lol, no wonder u are in 'the top posters list'....... one post a day for me........but my excuse is that m test day is pretty close.
Senior Manager
Joined: 25 Nov 2006
Posts: 277
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Kudos [?]: 36 [0], given: 0

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27 Jul 2007, 13:35
We don't have to go that far for parallelism in this question...

Just by looking the different form of 'variations' used here...

A. ...varying the electrical.....
No clear reference here
B Same as A
C ..variations of....
Not idiomatic
D Correct option
E. ..variations among...
Not idiomatic
CEO
Joined: 21 Jan 2007
Posts: 2756
Location: New York City
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Kudos [?]: 898 [1] , given: 4

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27 Jul 2007, 13:52
1
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botirvoy wrote:
bmwhype2 wrote:
oh. i did not realize tilting was a gerund in this question...

this is what happens when i post 150 times a week....

hey, slow down a bit! you seem to be posting 24 hours a day

i only post during my down time at work, and at home.

i guess this is a good thing because fatigue will set in by the time i hit the verbal section when i am taking the GMAT. catch all mistakes now and be aware of them later.
27 Jul 2007, 13:52
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