GMAT语法练习：套装题SECTIONL.doc

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is to be delayed 18. 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,
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