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Director
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Geologists believe that the warning signs for a major [#permalink]
 15 Jun 2005, 15:47
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0% (00:00) correct
 0% (00:00) wrong based on 0 sessions
326. 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 stain 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
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GMAT Club Legend
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D is best. maintains proper parallelism. 'variations in' is also the correct idiomatic form.
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Director
Joined: 20 Apr 2005
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The OA is D.
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