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问题 填空题

( )备份上一次完全备份后产生和更新的所有新的数据。

答案

参考答案：差异

选择题
You must learn to consult your feelings and your reason________you reach any decision.                                                                  
A．althoughB．before
C．because D．unless
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选择题

I think I'll just _____ myself with a cup of tea before I go to meet the leader.[ ]

A. refresh  

B. drown  

C. astonish  

D. bend
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