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59. His studies of ice-polished rocks in his Alpine homeland, far outside the range of present-day glaciers, led Louis Agassiz in 1837 to propose* concept of an age in which great ice sheets' existed in now currently temperate areas.
A) in which great ice sheets had existed: currently temperate areas
(B) in which great ice sheets existed in what are now temperate areas
(C) when great ice sheets existed where there were areas now temperate
(D) when great ice sheets had existed in current temperate areas
(E) when great ice sheets existed in areas now that are temperate
我选了D,,,
求每一项排除...
Even today, a century after Pasteur developed the first vaccine, rabies almost always kills its victims unless inoculated in the earliest stages of the disease.
A its victims unless inoculated
B its victims unless they are inoculated
C its victims unless inoculation is done
D the victims unless there is an inoculation
E the victims unless inoculated
我选了C...
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发表于 2013-9-25 22:18:47
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