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求助OG 12 Q70
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 the
concept of an age in which great ice sheets had
existed in now currently temperate areas.
(D) when great ice sheets had existed in current
temperate areas
OG说D选项current temperate areas is unclear,current should be currently,我知道改成currently可以修饰temperate，但current temperate areas为什么是unclear呢？ |
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