What is the advantage of the new air-conditioning system
A: The cost of the air-conditioning device is very low.
B: The working principle of the system is simple.
C: Minimal amount of energy is needed.
D: Only natural resources can be made use of.
A: The cost of the air-conditioning device is very low.
B: The working principle of the system is simple.
C: Minimal amount of energy is needed.
D: Only natural resources can be made use of.
举一反三
- A re-heater in an air conditioning system functions to ______.
- _____is not included in the system to be prepared when the main engine is preparing for the vehicle. A: Power system B: Lubricating oil system C: Compressed air system D: Air conditioning system
- Can you ________ the air conditioning?
- Q: According the passage, what is one disadvantage of skyscrapers that have mirrored walls? A: The surrounding air is heated. B: They produce more glare for those inside the skyscrapers. C: The construction time and cost are increased. D: Extra air-conditioning equipment is needed.
- We don’t need air conditioning, ____?