What are the components of a road transportation system?
A: Human
B: Roads
C: Vehicles
D: Infrastructure
A: Human
B: Roads
C: Vehicles
D: Infrastructure
A,B,C
举一反三
- 交通工具和设施 A: transportation vehicles B: transportation vehicles and facilities C: vehicles and facilities D: transportation and facilities
- What is the meaning of "aviation" ? A: transportation B: vehicles C: communication D: the flying of aircrafts
- Among the following modes of transportation, ( ) is the earliest mode of transportation used by human beings, but it still plays an important role in the modern transportation system. A: Railway transportation B: Water transportation C: Road transportation D: Pipeline transportation
- Partially-autonomous vehicles may _____. A: expect a human driver to take over when running into uncertainty B: communicate with other vehicles or infrastructure C: be capable of self-driving all the time D: not need a steering wheel
- 中国大学MOOC: An urban transportation system can be further characterized by three major components:
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What are the infrastructure systems? A: skeletal systems B: muscular systems C: cardiovascular system D: nervous system E: lymphatic system
- 1
The ancient Silk Road and ''Amber Road“ these two roads joined in what is now and help exchanges between Western and Eastern civilizations.
- 2
What are the main components of garden? A: Terrace B: Water system C: Plants D: Architecture
- 3
What are the components of the running gear system？ A: frame B: axle C: wheel D: suspension.
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Before people found and utilized fossil-fuel in transportation, the energies to power vehicles are ( ). A: Solar energies and wind B: Charcoal and coal C: The action of human muscles and wind D: Wood and coal