单项选择题

A．To save money on equipment.
B．To instruct newcomers to learn bicycle maintenance.
C．To ensure that everyone knows about the historical sites.
D．To help keep participants from getting lost.
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单项选择题
A．It must be the right height.B．It must have several gears.C．It must have good tires.D．It must be the right weight.
A．It must be the right height.
B．It must have several gears.
C．It must have good tires.
D．It must be the right weight.
单项选择题
A．Her prior schooling.B．Her residency.C．Her age.D．Her driving record.
A．Her prior schooling.
B．Her residency.
C．Her age.
D．Her driving record.
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