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单选题
Which of the following terms represents the form of heat removed from the refrigerant in the condenser of a refrigeration system?（）
A
Latent heat of vaporization
B
Heat of compression
C
Superheat
D
All of the above
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Control the amount of lube oil burned in the combustion chamberB
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单选题Which of the following statements is correct concerning heat transfer?（）A
Heat is given off from a high temperature region known as a heat sinkB
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Conduction of heat to adjacent surfacesB
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Pump headC
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Degree of saturationB
Saturation temperatureC
Superheated temperatureD
Degree of superheat
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Non-harmonic speedB
Critical speedC
Maximum speedD
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The heat is supplied by human bodies only.B
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HeatsinkB
FanC
Liquid coolingD
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