Geologists believe that the warning signs for a major earthquake may include sudden fluctuation in local Seismic activity, titling and other deformation of the Earth's crusts, changing the mearsured strain across a fault zone, and varying the elctrical 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 variation in
D changes in the measured strain across a fault zone, and variation in
E. changes in the mearsurement of the strain across a fault zone, and variations among
这题到底是什么和什么平行啊， 晕的很！到底平行的是名字还是动词啊！？
OA 给的是D, 我怎么老看着B像呢？ | 
