单选题：For an American citizen on a 2-day tour of Canada,how much t

题目分类：英语
题目类型：单选题
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题目内容：

For an American citizen on a 2-day tour of Canada,how much tax does he have to pay on $ 1.600 US worth of purchases when returning to the US?
A．$ 24 US
B．$ 48 US
C．$52 US
D．$ 200 US

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