请教 GWD 6-39

jianghl

请NN们指点一下:

Q39:

Past assessments of the Brazilian rain forest have used satellite images to tally deforested areas, where farmers and ranchers have clear-cut and burned all the trees, but such work has not addressed either logging, which is the removal of only selected trees, as well as surface fires, burning down individual trees but do not denude the forest.

which is the removal of only selected trees, as well as surface fires, burning

which removes only selected trees, or surface fires that burn

which removes only selected trees, along with surface fires that burn

removing only selected trees, or surface fires, burning

removing only selected trees, as well as surface fires that burn

答案是B, 但D为何不好呢? 用动名词做伴随性的独立结构来修饰LOGGING 和SURFACE FIRES.和用which 来修饰谁好呢？

谢谢

joe11

看一下置顶的帖子吧。LES 已经总结了所有关于GWD的提问了。

gwd 6-39
http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=56107