75 According to the passage, in a direct flight, an airplane may stop at an airport before arriving at the destination for the following purposes EXCEPT_____ .
(A) refueling
(B) disembarking passengers
(C) changing pilots
(D) picking up passengers
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統計: A(5), B(5), C(20), D(4), E(0) #3412440
統計: A(5), B(5), C(20), D(4), E(0) #3412440