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(D)
(E) changes in measurements of the strain across a fault zone, and variations among
请问这里的tilting and other deformations of the Earth’s crust是做插入句,用来形容前面的seismic activity吗? 看不太懂这句的意思。NN救一下~
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