How to reply if the passenger asks for an extra helping?
A. Well. I need to serve all the passengers first.
B. Sure. Here you are.
C. No, you can’t.
Definitely not.
How to reply if the passenger asks for vegetarian food?
A. Enjoy your meal.
B. Have you mentioned your requirement when booking?
C. Definitely not.
D. I do not know.
（中译英）请放下小桌板，调直座椅靠背。
A. Please return the seatback to the upright position and lower the tray table.
B. Please put down the tray table and straight up your seat back.
C. We have rice and noodles. Which do you prefer?
D. We are going to provide meal service.
常用的比率法有以下几种（）
A. 相关比率
B. 构成比例
C. 动态比率
D. 静态比率
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