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【单选题】
—____ the workers are very tired, _____they keep on working. — They are great. We must learn from them.A.
Because; /
B.
Though; /
C.
Because; so
D.
Though; but
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【单选题】For the last few decades, the Japanese concept of a good life was defined by narrow parameters: children would study hard, attend the best university possible, and join a big company as a 'salaryman' ...
A.
capacitors
B.
parachutes
C.
parallels
D.
considerations
【简答题】如图甲所示,水平传送带沿顺时针方向匀速运转。从传送带左端 P 先后由静止轻轻放上三个物体 A 、 B 、 C ,物体 A 经 t A = 9.5 s 到达传送带另一端 Q ,物体 B 经 t B = 10 s 到达传送带另一端 Q ,若释放物体时刻作为 t = 0 时刻,分别作出三个物体的 v - t 图像如图乙、丙、丁所示, g 取 10 m/s 2 ,求: (1) 传送带的速度大小 v 0 ;...
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