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【单选题】_____ computer has been proved to be _____ important aid in classroom teaching.A．The; anB．The; t
A.
22. _____ computer has been proved to be _____ important aid in classroom teaching. A．The; an
B.
The; the
C.
A; the
D.
A; /
【简答题】接触网作业用的车梯和梯子必须符合什么要求？
【简答题】History has proved that you cannot win peace by the appetite of the aggressors.
【单选题】The great invention he made _____ of great benefit to the whole world. [ ]
A.
is proved
B.
has proved
C.
has been proved
D.
is proved to be
【单选题】The direct flight has proved successful, ________ Taiwan another tourist destination for people on the mainland. [ ]
A.
made
B.
making
C.
make
D.
makes
【单选题】本工程中代号 LM184表示( )
A.
洞口尺寸为宽度为 1800mm、高度为2400mm的铝合金推拉门
B.
洞口尺寸为宽度为 1800mm、高度为2400mm的保安门
C.
洞口尺寸为 1宽度为1800mm、高度为2400mm的单扇平开木夹板门
D.
洞口尺寸为宽度为 1500mm、高度为2400mm的铝合金推拉门
【简答题】A．He has lost his history book. B．He doesn't like the history course. C．He has to read a lot of history books. D．He finds history difficult to understand.
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