单项选择题

It is the _________ of the police to prevent and detect crime and of the law courts to punish crime.

A．affair
B．business
C．occupation
D．duty
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单项选择题
If you suspect that the illness might be serious, you should not _________ going to the doctor.
A．pick out
B．make out
C．give up
D．put off
单项选择题
Should every government agency have _________ to the computer files of every other agency
A．access
B．entrance
C．accent
D．entitlement
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