机上延误是指航班实际出港撤轮挡时间晚于计划出港时间超过15分钟的情况。
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剪贴的工具有哪些?
A. 剪刀
B. 彩纸
C. 胶棒
D. 刻刀
Speaker A: I' ve got to go to bed, Mum. Good night. Speaker B: _____________________
A.Good evening.
B.Good night.
C.Goodbye.
Speaker A: I study in a vocational school. How about you? Speaker B: _______________________
A.My school is beautiful.
B.I'm fine
C.I study in a middle school.