单项选择题

The police have asked for the ______ of the public in tracking the whereabouts of the escaped criminals.

A．partnership
B．union
C．association
D．co-operation
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单项选择题
My telephone has rung so often today that it is becoming a(n) ______.
A．interruption
B．bore
C．distress
D．nuisance
单项选择题
Several experts have been called in to plan ______ for boating, tennis, refreshments and children's games in the projected town park.
A．set
B．facility
C．equipment
D．application
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