更多"A in the development of air transpo"的相关试题:
[填空题]A. in the development of air transportation
B. the earliest passenger flights were successfully operated
C. to make travel easy and pleasant for the passengers
D. to provide different services
E. the shortage of qualified pilots
F. travelling by air was very cheap
Air transport companies use different planes ______.
[判断题]In international air cargo transportation, Specific Commodity Rate are only applicable to named types of cargo. ( )
[填空题]
Air Transportation
1 Airplanes are used to carry passengers, cargo and mail. Air transport companies operate scheduled airlines and non-scheduled services over local, regional, national, and international routes. The aircraft operated by these companies range from small single-engine planes to large multiengine jet transports.
2 The first air passenger services began in 1910, when dirigibles began operation between several German cities. The first scheduled airplane service to carry passengers began in the U. S. in 1914. Several experimental airmail flights took place in India. Europe, and the United States before World War Ⅰ, but air transport services did not become a true business until after the war.
3 During World War Two, intercontinental air transport became firmly established. After the war the new long-distance transports with advanced facilities were increasingly able to avoid storms and strong wind and make
[填空题]
- A. in the development of air transportation
- B. the earliest passenger flights were successfully operated
- C. to make travel easy and pleasant for the passengers
- D. to provide different services
E the shortage of qualified pilotsF. travelling by air was very cheap
The United States was the country where ______.
