单项选择题

A．400.
B．137.
C．8.
D．More than 20.
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单项选择题
A．we can earn more moneB．we can benefit moreC．they will give us more serviceD．they will move their main building to China
A．we can earn more mone
B．we can benefit more
C．they will give us more service
D．they will move their main building to China
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