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.
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答案與詳解
紅綠通道為 WCO(世界海關組織)建議之雙通道制度:Red Channel 為應申報通道,Green Channel 為免申報通道,全球機場港口通用。
