問題詳情
14. Nontariff trade barriers have increased in popularity in part because they ________ .
(A) generate profits for foreign firms
(B) can be concealed from the WTO
(C) are easy for governments to enforce
(D) reduce smuggling along borders
參考答案
答案：B
難度：困難0.333333
統計：A(0),B(2),C(2),D(2),E(0)