单项选择题
A.2,000 miles B.3,000 miles C.20,000 miles D.30,000 miles
A.Offering different language courses. B.Providing modern training facilities. C.Starting training courses overseas. D.Developing quality standards.
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