問題詳情
38 The Harmonized System is used by more than 200 countries and _____ as a basis for their Customs tariffs andfor the collection of international trade statistics.
(A)economics
(B) economical
(C) economy
(D)economies
參考答案
答案：D
難度：困難0.325301
統計：A(24),B(14),C(13),D(27),E(0)
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