A.latent heat of fusion
B.latent heat of vaporization
C.specific heat of vaporization
D.latent heat of the gas
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A.open-type
B.hermetic
C.A and B
D.None of the above
A.compressor
B.condenser
C.throttle valve
D.evaporator
A.lower；higher
B.shallower；deeper
C.larger；smaller
D.higher；lower
A.evaporation
B.frosting
C.condensing
D.compressing
A.rise
B.fall
C.be maintained constant
D.None of the above
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