one more, need help!!!

linlefeng

Wind resistance created by opening windows while driving
            results in a fuel penalty as great or greater than is incurred by using air
                conditioning.

 (A) as great or greater than is incurred by using air conditioning

 (B) that is as  great or greater than is incurred using air conditioning

 (C) as great as or greater than that of using air conditioning

 (D) at least as great as air conditioning's

 (E) at least as great as that incurred by using air conditioning

cakemouse

as great as or greater than. 固定用法.

neo1001

D

A)as great 后面没有了as
B)同上
C）that of using。。。和wind resistance created by。。。不对称
D）air conditioning's和前面不对称
E）at least as great as简洁，that incurred by。。。和前面对称