Thanks to the（）of air transport， everyone is free to go anywhere at any time._精华吧

Thanks to the（）of air transport， everyone is free to go anywhere at any time.

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Thanks to the（）of air transport， everyone is free to go anywhere at any time.

A.efficiency

B.effective

C.affection

D.reflection

正确答案：efficiency

Tag：大学英语时间：2024-01-04 10:48:07

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