【单选题】The seat number is ___on the edge of each overhead compartment.
【多选题】土石坝滑坡前都有一定的征兆,主要表现在( )。
【简答题】On most flights, seats are allocated to passengers at the check-in 1 . The seat number is often 2 on the passenger's boarding 3 . Seats are numbered in rows from the 4 of the aircraft to the 5 and let...
【多选题】土石坝滑坡前都有一定的征兆,主要表现在( )。