GMAT-2-34请教求解思路

sv2000

NASA’s methodical approach to the exploration of Mars has not yet answered the questions of whether biological life forms ever emerged on Mars and whether, presuming such life forms having left fossil traces to begin with, those traces can still exist in some moist recesses of the cold and arid planet. and whether, presuming such life forms having left fossil traces to begin with, those traces can and whether, if it is presumed that such life forms left some fossil traces to begin with, can those traces and whether, presuming such life forms left fossil traces to begin with, those traces and, presuming such life forms did leave some fossil traces to begin with, if they can and, presuming such life forms to have left fossil traces to begin with, if they

[此贴子已经被作者于2005-11-11 15:40:06编辑过]

yangsh

a

sunnybest

I choose C. having in A seems weird.

sunnier

I think a is better

Because in c, there should be a "that " before "such".

Greenest

My choice is also A

chamcham

A

seastone

A   if  omit can, then the sentence change the meaning

stevegt

首先,必须用whether不能用if 所以 DE错

然后,如果persume后面是个句子的话,必须加上that B,C错

A对