A. This way, please. B. Would you like me to take you to your seat? C. Shall I take you to your seat? D. All the above
A. 机上餐券 B. 登机凭证 C. 餐食优惠券 D. 饭票
A. 纸质登机牌 B. 彩信 C. 二维码 D. 以上都是
A. 双面打印 B. 立体空间 C. 二维码 D. 两种方式
A. passenger's name and flight code B. boarding and departure time, boarding gate C. cabin (FCY) and seat number D. All the above