問題詳情

5. which of the following has helped the airline industry make profits?
(A) Drop in fuel prices.
(B) Raise in flight tickets.
(C) Competition among companies.
(D) Improved efficiency in the industry

參考答案

答案:D
難度:適中0.481752
統計:A(84),B(28),C(30),D(132),E(0)

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