单项选择题

A．An alloy of copper and silver.
B．Pure silver or pure gold.
C．An alloy of copper and tin.
D．An alloy of gold and silver.
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问答题
Detractors of cultural imperialism think that cultural domination endangers_______________.
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.
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