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【简答题】
下列代码运行结果是() import numpy as np Number = [66, 55, 44, 88] Number_mean = np.mean(Number) Number_mean = round(Number_mean, 2) print Number_mean A. 63 B. 64 C. 63.25 D. 64.25
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【单选题】超声设备的纵向分辨力与( )有关。
A.
超声频率
B.
介质密度
C.
声波速度
D.
介质厚度
【单选题】超声设备的纵向分辨力与( )有关
A.
超声频率
B.
介质密度
C.
声波速度
D.
介质厚度
【简答题】Due to the heavy rain and flooding,ten million people have been forced _________ their homes. A.leaving B.to leave C.to be left D.being left
【单选题】You should know better than ______ your little sister at home by herself.
A.
to leave
B.
leaving
C.
to have left
D.
left
【单选题】The couple went to a birthday party, ______ their little daughter alone at home.
A.
leave
B.
left
C.
leaving
D.
having left
【单选题】On August 12,2009, Typhoon Morakot swept across Taiwan island, _____ a lot of villages _____.
A.
leaving; damaged.
B.
left; damaged.
C.
left; damaging.
D.
leaving; damaging.
【单选题】西方经济学萌芽时期的代表流派是
A.
重农主义
B.
重商主义
C.
古典经济学
D.
庸俗经济学
【单选题】超声设备的纵向分辨力与( )有关。 A.超声频率 B.介质密度 C.声波速度 D.介质厚度
A.
B.
C.
D.
D
【单选题】Mr.'White, together with his coaett, __________for America today
A.
are to leave
B.
is leaving
C.
are leaving
D.
leave
【单选题】'It's been a privilege to meet you, sir,' the young man said to the artist as he was leaving.
A.
a pleasure
B.
an ambition
C.
an honour
D.
a sad occasion
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