单项选择题

A．It is a war ship.
B．It is a one-person underwater vehicle.
C．It is a kind of airplane.
D．It is a one-person vehicle on the se
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单项选择题
A．Because computers have no conscience.B．Because computers can be used to steal money.C．Because computers are honest.D．Because computers are cheaper.
A．Because computers have no conscience.
B．Because computers can be used to steal money.
C．Because computers are honest.
D．Because computers are cheaper.
单项选择题
A．12:15.B．12:30.C．1:00.D．1:15.
A．12:15.
B．12:30.
C．1:00.
D．1:15.
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