题海让大学四年没有难题
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题目详情

单选题 Passengers should send their application to Air France ________

A. upon receiving the application form

B. within 3 weeks of their first flight

C. before their first flight with Air France

D. within 6 months of joining the program

公共英语课程封面

学科:公共英语

时间:2023-06-16 15:44:14

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