og199

199. Because the Earth's crust is more solid there and thus better able to transmit shock waves, an earthquake of a given magnitude typically devastates an area 100 times greater in the eastern United States than it does in the West.

(A)  of a given magnitude typically devastates an area 100 times greater in the eastern United States than it does in the West

(B)   of a given magnitude will typically devastate 100 times the area if it occurs in the eastern United States instead of the West

(C)  will typically devastate 100 times the area in the eastern United States than one of comparable magnitude occurring in the West

(D)  in the eastern United States will typically devastate an area 100 times greater than will a quake of comparable magnitude occurring in the West

(E)   that occurs in the eastern United States will typically devastate 100 times more area than if it occurred with comparable magnitude in the West

At issue is the accurate expression of a complex comparison. Choice D, the best answer, presents the proper form of comparison, will typically devastate an area 100 times greater than will; thus, choice D logically indicates that earthquakes in the eastern United States are 100 times more devastating than are western earthquakes. Choices A, B, and E use it incorrectly to suggest that the same quake strikes both the eastern and the western United States. In choice C, 700 times the area... than is unidiomatic.

为什么是D?

好像也是不平行啊？后面的than will 是什么成份？整个句子感觉都不通  请大牛指教

这么分析　

an earthquake will devastate xxx greater than an earthquake will devastate in another xxx

后面这个 an earthquake 是 a quake of comarable magnitude

D中是把will倒装了。如果正常语序就是in the eastern United States will typically devastate an area 100 times greater than a quake of comparable magnitude occurring in the West will