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IfacomputercrasheIfacomputercrashes,youwilllosethefileyouonifyoudon'tsaveitearlyenough.[]A.workB.areworkingC.willworkD.worked

题目详情
If a computer crashe
If a computer crashes,you will lose the file you ______ on if you don't save it early enough.   [     ]
A.work          
B.are working        
C.will work          
D.worked
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答案和解析
B
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