【单选题】A( n) _____ is a tax on imports that is stipulated as a money amount per unit . a. specific tariff b. ad valorem tariff c. effective tariff d. optimal tariff
【判断题】A ad valorem tariff provides domestic producers a declining degree of protection against import-competing goods during periods of changing prices.
【简答题】For this part, you are allowed 30 minutes to write a composition on the topic The Influence of Internet. You should write at least 120 words and you should base your composition on the outline. 1. The...