单项选择题

A．To produce them more cheaply.
B．To keep them a uniform size.
C．To make them lighter.
D．To make them perfectly round.
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单项选择题
A．His desire to start Iris own business.B．The crisis in his family life.C．The decline in his health.D．His dream of living in the countryside.
A．His desire to start Iris own business.
B．The crisis in his family life.
C．The decline in his health.
D．His dream of living in the countryside.
填空题
implies
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