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【单选题】
Extracts 7A.
in a taxi
B.
at an airport
C.
at a railway statinon
D.
at a hotel
E.
on a plane
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A.
正确
B.
错误
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A.
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B.
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C.
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D.
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A.
修改原建设工程档案
B.
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D.
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