A . The high value
B . Low density or weight
C . A and B
D . Shortest time to transport
[单选题]What kind of products do the air carriers deliver? （）A . The high valueB . Low density or weightC . A and BD . To add cost
[问答题]What kind of life do most people enjoy?
[问答题]What kind of life do most people enjoy?
[问答题]What kind of life do most people enjoy?
[问答题]What kind of life do most people enjoy?
[单选题]5. —What kind of movies do you like?—________.A． I like comediesB． I like itC．It s scaryD．It s interesting
[单选题]22． What kind of movies do many young people like?A． ThrillersB． Action moviesC． Cartoon moviesD． Beijing Opera
[主观题]The area where the air carrier holds the accepted cargo is also restricted area.此题为判断题(对，错)。
[单选题]What is NOT a function of the air supply of a covered lifeboat?（）A . Provides air for engine combustionB . Pressurizes water spray systemC . Provides air for passenger respirationD . Prevents smoke and other noxious fumes from entering craft
[单选题]What is the disadvantage for air transportation? （）A . Quick but not safeB . Less frequencyC . It can’t lift heavy goodsD . The highest cost in all transport modes