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1.Inuits of the Bering Sea were in isolation from contact with Europeans longer than Aleuts or Inuits of the North Pacific and northern Alaska.
(A) in isolation from contact with Europeans longer than
(B) isolated from contact with Europeans longer than
(C) in isolation from contact with Europeans longer than were
(D) isolated from contact with Europeans longer than were
(E) in isolation and without contacts with Europeans longer than
正确答案是d than后面补出了were
但是看下面这道题
Plants are more efficient at acquiring carbon than are fungi, in the form of carbon dioxide, and converting it to energy-rich sugars.
(A) Plants are more efficient at acquiring carbon than are fungi,
(B) Plants are more efficient at acquiring carbon than fungi,
(C) Plants are more efficient than fungi at acquiring carbon,
(D) Plants, more efficient than fungi at acquiring carbon,
(E) Plants acquire carbon more efficiently than fungi,
正确答案是c
为什么不可以是a选择?其后也补出了系动词are啊?跪求nn解答!!! |
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