在DOS系统中,文件分配表的每个表目存放一个簇号,若簇大小为8192字节,系统能管理的磁盘容量是512M字节,文件分配表的每个表目的长度位数为( )
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The company has promised to _____ no efforts on the cooperation with us.
A. spare
B. save
C. share
D. make
I’ve been so busy recently that I don’t know who has been _____ the US president.
A. elected
B. singled out
C. chosen
D. pick up
Your mobile phone needs _____. You’d better have it done tomorrow.
A. repaired
B. to repair
C. repairing
D. being repaired
Television is another major means of communication, _____ us to see as well as _____ the performers.
A. permitting; to hear
B. permitting, hearing
C. to permit; to hear
D. to permit; hearing