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【判断题】
隧道空间最小换气频率不应低于每小时2次。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】Mary is flying to France soon. She will arrive _____ Paris _____ the morning of July 19. [ ]
A.
to, on
C.
in, on C. in, in C. at, in
【单选题】Where is Mary flying ? She is flying to France soon. She will arrive _____ Paris _____the morning of July2.
A.
to, on
B.
at, on
C.
in, in
D.
in, on
【单选题】Mary is flying to France soon. She will arrive ________ London ________ the morning of July 19. [ ]
A.
to, on
B.
in, on
C.
in, in
D.
at, in
【单选题】 -Where is Mary flying? -She is flying to China soon. She will arrive Beijing the morning of July 2.
A.
to; on
B.
at; on
C.
in; in
D.
in; on
【单选题】Mary has ______ speaking dialects, so it is not surprising to see her communicate with the people from different parts of this country easily. [ ]
A.
a gift for
B.
trouble in
C.
effects on
D.
nothing to do with
【单选题】Mary is flying to France soon. She will arrive _____ Paris _____ the morning of July 9. [ ]
A.
at, in
B.
in, on
C.
in, in
D.
at, on
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