单选题
As for the ______ flights, all passengers should check in at least two hours before the scheduled boarding time. A. interacting B. international C. inordinate D. insubordinate
【正确答案】
B
【答案解析】初级问题 international flights意为“国际航班”。国内航班为domestic flights。请记住类似这样搭配使用的词组。 [高频词语] as for 至于，说到 boarding time (飞机的) 登机时间