59、下列关于公安部一所CMEX-V6550B机型X射线机功能键说法正确的有( )。

43、——( )
——I am going to Lhasa.

45、Sir, please( ).

44、Which of the following cannot be taken on the plane?

43、Which of the following can be exempted from security check?

49、Generally speaking,( )should have a valid permit when he needs to enter the departure lounge.

48、After security check, it is best for the screeners to say ( )

47、( )should be taken out before a passenger passes through the walk-through metal detector.

46、I’m sorry, but the name on the ticket( )that on your passport.

46、Each permit shall, at least, contain( ).

45、——Do you know why my flight has been delayed?
——( )