74、禁止携带的危险品包括内装有锂电池和/或烟火装置等危险品的( )等保密型设备禁止携带。

44、I’d like to( ) for the inconvenience caused by this delay.

43、Which of the following is not the number code of Delta Air Lines?

44、What kind of things cannot be taken on the plane?

43、If you don’t have any( ),the security check will be very quick.

42、The purpose of security check is to prevent( ).

46、A:I have just checked in for Flight MU586.What should I do now?

45、I’m sorry to tell you that your flight has been delayed owing to( ).

44、A:( )

43、Which of the following is not the two letter code of American Airlines?

45、The security check is carried out for( ).