阿摩線上測驗
35 For checking travelers and their baggage arriving by air or sea, Customs control should be facilitated by
the use of the dual-channel or ______system.
(A)orange/blue
(B)yellow/grey
(C)red/green
(D)black/white
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統計： A(0), B(4), C(216), D(3), E(0) #2013461
統計： A(0), B(4), C(216), D(3), E(0) #2013461
