单项选择题

A．Never.
B．Once,
C．Three times.
D．Six times.
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单项选择题
A．Industry and education have a clear mutuality of interest.B．Businessman and educators have harmonious friendship.C．Industry and training are inseparable.D．Universities and corporation contributions are not regarded as supreme importance.
A．Industry and education have a clear mutuality of interest.
B．Businessman and educators have harmonious friendship.
C．Industry and training are inseparable.
D．Universities and corporation contributions are not regarded as supreme importance.
单项选择题
A．At an airport.B．At a railway stationC．At a bus stop.D．In a waiting room.
A．At an airport.
B．At a railway station
C．At a bus stop.
D．In a waiting room.
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