【判断题】润滑油的作用有润滑,冷却,洗涤,密封,防锈和消除冲击负荷的作用。
【简答题】(Check-in at the airport 实训视频) The passenger had_____ to check and ______carry-on baggage.
【判断题】顾问团一般不是企业员工,是企业外聘的专家( )
【简答题】(Check-in at the airport 实训视频) The seat number of the passenger is______.
【简答题】hotel english_clip.mp4 观看2次视频,请将视频check-in对话内容口译成中文,并录音上传
【简答题】(Check-in at the airport 实训视频) The passenger is still______ and the ticket is in the order.