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单项选择题
A．To make coins lighter.B．To conserve silver.C．To use up surplus copper.D．To make coins last longer.
A．To make coins lighter.
B．To conserve silver.
C．To use up surplus copper.
D．To make coins last longer.
单项选择题
A．In a clothing store.B．In a garden.C．At a cleaner’s.D．At a printing shop.
A．In a clothing store.
B．In a garden.
C．At a cleaner’s.
D．At a printing shop.
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