78、机要文件、密码的检查方法:对装有机要文件的航空专用文件箱,凭中办机要交通局的《机要交通专用证》和( )免予检查;不能铅封的箱(包),凭《专用证》和贴有的( )免予检查。

18、An air ticket is only( )for the passenger whose name appears on the ticket.

17、The article that can burn easily is( ).

16、If you haven’t got a boarding pass, please go to the airline counter to go through the( ) first.

15、A: Could you tell me why the flight to Beijing has been( )?

15、设备能分辨单根实芯镀锡铜线的能力,一般用线的标称直径( )和线号( )表示是( )的定义。

5、The two letter code of Alitalia is( ).

4、( )is the carriage of goods from place to place by air.

8、( ) is the place at a port ,airport or border where travellers’bags are inspected to see if any goods are being carried illegally.

7、The staff should give the( ) a manual search.

16、X射线机有用穿透分辨力用英文表示为( )。