13. Tariffs which are ad valorem are ________ .
(A) based on the weight or size of the imported product
(B) assessed as a percentage of the imported product’s value
(C) intended to provide a steady flow of income for the government
(D) levied on specific imported and exported products
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統計: A(4), B(32), C(5), D(4), E(0) #1094146
統計: A(4), B(32), C(5), D(4), E(0) #1094146