单项选择题

A．Computers can bring financial problems.
B．Computers can be very useful in families.
C．Computers can bring unemployment.
D．Computerized robots can take over some unpleasant jobs.
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单项选择题
A．11-week course for control duty.B．9-week course for control duty.C．11-week course for patrol duty.D．9-week course for patrol duty.
A．11-week course for control duty.
B．9-week course for control duty.
C．11-week course for patrol duty.
D．9-week course for patrol duty.
填空题
Monetary
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