168.Excuse me. What is the free __________ for passengers' carry-on luggage?
(A)allowance
(B)reservation
(C)weight
(D)loading

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統計: A(7), B(0), C(1), D(1), E(0) #3249154

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#6940857
題目解析 這道題目是關於航空旅行時,乘...
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