168. 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 the 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

答案是D.

请问A错在什么地方？是因为后面的it应该省略而没有省吗？如果改成than does in the west对吗？

是不是主语相同一定要省略呢？

另外这个题的前面都是用的现在时，可是D里面than后面为什么用将来时态？

还有我看到很多题里面than后面都用倒装，这是为什么呢？

问题多多，多谢赐教！

感谢！！！！