53、第二代身份证采用的防伪技术有( )。

47、Procedures for the proper control and screening of checked baggage are designed to prevent( )from being introduced into the baggage compartment of an aircraft.

46、No rush, sir, the plane will take off in 15 minutes, there’s still( )left.

45、I’m sorry, sir. Your identity card( ). Do you have any other means of identification?

46、Which of the following are NOT right?

45、Before checking in the baggage, it’s best for the passenger to( ).

44、In order to improve checking speed,passengers in tourist group,please( ) according to the list of plane tickets.

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?