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.deficiency

C.sufficiency

D.proficiency

正确答案：efficiency

Tag：MyCollegeEnglishDiary 时间：2024-01-03 21:49:36

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