单项选择题

A．To save money on equipment.
B．To help keep participants from getting lost.
C．To instruct newcomers about bicycle maintenance.
D．To ensure that everyone knows about the historical sites:
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G
单项选择题
A．The personnel manager should be fired for inefficiency.B．A few engineers should be employed to modernize the factory.C．The entire staff should be retrained.D．Better-educated employees should be promoted.
A．The personnel manager should be fired for inefficiency.
B．A few engineers should be employed to modernize the factory.
C．The entire staff should be retrained.
D．Better-educated employees should be promoted.
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