A: To limit discussion on heating bills.
B: To prevent heat loss.
C: To determine the temperature in homes.
D: To convert homes to electric heat.
举一反三
- 4-3。What is the working principle for LED？（ ） A: convert electric to light B: convert light to electric C: convert electric to heat
- In the meeting, they had a ________discussion on the report. A: heat B: heated C: heating D: heater
- If ___ to a high temperature, ice will change to water. A: heating B: being heated C: to heat D: heated
- Empty or abandoned houses serve as _______ homes to people who fled their own homes with the aim of starting a new life. A: brilliant B: foreign C: temporary D: secondary
- How will the heat loss change by thickening the insulation layer outside the pipe? A: Increase B: No change C: Decrease D: Can not be determined
内容
- 0
Which of the following is not a function of modern lubricants A: Reduced friction B: Heat insulation C: Sealing D: Heat dissipation
- 1
The production process of thermal power plant is to convert () of fuel into electric energy. A: chemical energy B: heat energy C: mechanical energy D: kinetic energy
- 2
The people in New Zealand use the hot pools for ______ . A: cooking food B: watching clothes C: cooking and washing D: cooking, washing and heating their homes
- 3
Which options are the body's regulation of temperature in a cold environment A: sympathetic nerve tension increases B: skin blood vessels contract, heat loss reduces C: shivering D: basal metabolic rate increase, heat production increase
- 4
中国大学MOOC: The ______ the heat capacity, the _____ the amount of heat needed to produce a temperature change.