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【单选题】
在关系数据库管理系统中,所谓关系是指( )A.
各条记录之间存在关系
B.
各字段数据之间存在着一定的关系
C.
一个数据库与另一个数据库之间存在着一定的关系
D.
满足一定条件的一个二维表
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【单选题】The number of traffic accidents caused by drunk driving is _______ as the number of those caused by other reasons.
A.
twice as many
B.
twice as large
C.
as twice large
D.
many as twice
【单选题】关于纵向接缝中拉杆的叙述不正确的是( )。
A.
纵缝中拉杆的作用是防止板块位移,保证两侧板不致被拉开而失掉下部的嵌锁作用
B.
拉杆应采用螺纹钢筋
C.
设在板厚中央,并应对拉杆中部100mm范围内进行防锈处理
D.
最外侧拉杆距横向接缝的距离不得小于200mm
【单选题】The earthquake left,______ a lot of damage to Wenchuan.
A.
caused
B.
to have caused C to cause D. having caused
【简答题】A．being caused B．caused C．to be caused D．having caused
【单选题】--- The snowstorm caused great damage to this area. --- Exactly, the economic _______ it caused reached 20 billion.
A.
loss
B.
effect
C.
suffering
D.
debt
【单选题】The static interference on the radio __________ an airplane. has caused caused by
A.
was caused
B.
by was causing
C.
has caused
D.
caused by
【单选题】The storm left, _____ a lot of damage to this area. [ ]
A.
caused
B.
to have caused
C.
to cause
D.
having caused
【单选题】The number of traffic accidents caused by drinking is ________ as the number of those caused by
A.
27. The number of traffic accidents caused by drinking is ________ as the number of those caused by non-drinking driving. A．twice as many
B.
many as twice
C.
as twice large
D.
twice as large
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