HELP! 大全16

16.   New techniques in thermal-scanning photography, a process that records radiation from surface areas, makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before.

(A) makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before  (C)

(B) make it possible to study, in greater detail, the effects of calefaction, or warming, of a river than ever before

(C) have made it possible to study in greater detail than ever before the effects of calefaction, or warming, of a river

(D) make possible the study of the effects of calefaction, or warming, of a river in greater detail than it ever was before

(E) has made it more possible than ever before to study in greater detail the effects of calefaction, or warming, of a river

我选的是A  我觉得C好象改变句意了,A又错在哪儿呢?

THANKS

谢谢 爱无伤,每次都是你给我回帖,可是我觉得C不太对,是改变句意了吗?

study  the effects of calefaction, or warming, of a river in greater detail than ever before  要好一些吧?

这个题我当时选B，楼主可以去讨论区看看，有讨论的。

至今，此题的所有解释似乎都有点勉强！