阿摩線上測驗
27 Each country has varying processes and requirements for customs and rules about ______of items.
(A) declaration
(B) characteristics
(C) convenience
(D) argument
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統計： A(146), B(26), C(16), D(11), E(0) #2294675
統計： A(146), B(26), C(16), D(11), E(0) #2294675
