国际顶尖MBA申请交流平台--TOPWAY MBA

标题: GWD2 Q34 疑问 [打印本页]

作者: 雨蛙 时间: 2006-9-12 00:55 标题: GWD2 Q34 疑问

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

答案是A，我认为是C，A里的having难以解释，请大侠给讲讲

[em09]

作者: 冰雪儿 时间: 2006-9-12 01:02

同意选C

作者: 约翰草 时间: 2006-9-16 00:56

i chose C too

作者: xiaoxiaoqing 时间: 2006-9-16 11:06

why c?

can anyone give a reason ?

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