问题
选择题
You will find what great benefit the computer you own can be _____ each time you use it to help you work.[ ]
A. for
B. of
C. at
D. on
答案
答案：B
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You will find what great benefit the computer you own can be _____ each time you use it to help you work.[ ]
A. for
B. of
C. at
D. on
答案：B