本贴相关题目 TN-19-SC-6 (ZLOW)

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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.

Aand whether, presuming such life forms having left fossil traces to begin with, those traces can
Band whether, if it is presumed that such life forms left some fossil traces to begin with, can those traces
Cand whether, presuming such life forms left fossil traces to begin with, those traces
Dand, presuming such life forms did leave some fossil traces to begin with, if they can
Eand, presuming such life forms to have left fossil traces to begin with, if they

正确答案: C

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发表于 2011-3-27 09:41:13 | 只看该作者回帖奖励

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发表于: 2011-03-22 13:26:49 - IP:*.*.*.*
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Q6 :TT-GWD 2-34.

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.

A.and whether, presuming such life forms having left fossil traces to begin with, those traces can

B.and whether, if it is presumed that such life forms left some fossil traces to begin with, can those traces

C.and whether, presuming such life forms left fossil traces to begin with, those traces （答案）

D.and, presuming such life forms did leave some fossil traces to begin with, if they can

E.and, presuming such life forms to have left fossil traces to begin with, if they

persuming such life forms left fossil traces to begin with 这个插入语的结构很混乱 left 是非谓语还是真正的谓语呢