一道GWD，求解释

寻沫访华

There are no legal limits, as there are for cod and haddock, on the size of monkfish that can be caught, a circumstance that contributes to their depletion through overfishing.

A.There are no legal limits, as there are for cod and haddock, on the size of monkfish that can be caught, a circumstance that contributes to their depletion through overfishing.

B.There are no legal limits on the size of monkfish that can be caught, unlike cod or haddock, a circumstance that contributes to depleting them because they are being overfished.

C.There are legal limits on the size of cod and haddock that can be caught, but not for monkfish, which contributes to its depletion through overfishing.

D.Unlike cod and haddock, there are no legal size limits on catching monkfish, which contributes to its depletion by being overfished.

E.Unlike catching cod and haddock, there are no legal size limits on catching monkfish, contributing to their depletion because they are overfished.

求解释？为什么是A呀？

sunshengkun666

http://forum.chasedream.com/GMAT_SC/thread-140064-1-1.html

http://forum.chasedream.com/GMAT_SC/thread-417116-1-9.html

-- by 会员 毛毛carina (2011/4/20 20:20:05)

我貌似在CD上看过一种说话，说UNLIKE后面ING形式的都不对是吗？

毛毛carina

http://forum.chasedream.com/GMAT_SC/thread-140064-1-1.html

http://forum.chasedream.com/GMAT_SC/thread-417116-1-9.html