单项选择题

The police ______ to emergencies in just a few minutes when the accident happened.

A．responded
B．replied
C．adjusted
D．appealed
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单项选择题
The full ______ of changes in computer technology will be felt within the next few years.
A．affect
B．impact
C．action
D．importance
单项选择题
______ is the question of using existing resources to produce original and beneficial solutions, ideas or products.
A．Creativity
B．Productivity
C．Application
D．Combination
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