单项选择题

Massive database management may be one area that could be ______ by optical technology.

A．presided
B．occupied
C．operated
D．dominated
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单项选择题
Credit creates the ______ that you can own things without paying for them.
A．vision
B．image
C．impression
D．illusion
单项选择题
It is generally accepted that the fun of playing the game was a greater ______ than the prize.
A．incentive
B．initiative
C．refreshment
D．entertainment
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