A.states
B.cities
C.islands
D.countr ies
正确答案:D答案为D。关税是一个国家对进口商品征收的税款,此处应填国家而不是城市、岛屿,排除B和C。state多指政治上的国家;而countr y多指地域上的国家,与developing构成习惯用法,指“发展中国家”。

A.states
B.cities
C.islands
D.countr ies
正确答案:D上一篇 ______ is accepted as wrong is not necessarily wrong.A. It B. That C. What D. That
下一篇 Which of the following is TRUE according to the passage?A. This influenza can cause de