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【单选题】
一国想要鼓励本国某产业的发展,当前该产业产品单价达到 6500 美元。对零部件征收 10% 的关税。国际市场上生产该产品的零部件成本为 3000 美元。从国际市场上进口同种产品的价格为 5000 美元。则这个关税税率对国内产品的有效保护率是:A.
30%
B.
50%
C.
60%
D.
80%
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A.
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B.
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C.
on; but
D.
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B.
Dick；your
C.
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D.
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