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【单选题】
. 城市轨道交通乘客乘坐轨道交通的有效凭证是A.
工作证
B.
学生证
C.
票卡
D.
身份证
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举一反三
【单选题】-- The thread of my kite broke and it flew away. -- I had told you it would easily break_______ it was the weakest.
A.
when
B.
since
C.
unless
D.
where
【单选题】Age had left him ()and for most of the time he had to stay in bed.
A.
motionless
B.
easily broken
C.
frail
D.
dead
【判断题】I had easily qualified for the finals on the first of my three qualifying jumps.
A.
正确
B.
错误
【简答题】岩石在建筑工程中有哪些用途？
【单选题】在对采用单圆盘式刹车装置的小型飞机施加刹车时,刹车装置中的压力板及背板上的 刹车片能够紧紧贴夹在刹车盘上产生刹车力矩的原因是 ( )
A.
刹车作动筒将背板推向刹车盘的同时，作动筒壳体带动压力板沿定位螺栓反向移动
B.
刹车作动筒将压力板推向刹车盘的同时，作动筒壳体带动背板沿定位螺栓反向移动
C.
刹车作动筒将压力板推向刹车盘的同时，也将背板相对压力板反向推动
D.
刹车作动筒将背板推向刹车盘的同时，也将压力板相对背板反向推动
【简答题】If it had not been for your help, I (not finish)____________the work so easily.
【单选题】_____ the fog, you would find the beautiful tower in the distance easily.
A.
Had it not been for
B.
I at were not
C.
If it had not been for
D.
Were it not for
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