12. Refrigerator is formed by a single vapor-compression system which
contains an operated cycle of four main elements. What element is operated
after compressor?
(A) Heater
(B) Evaporator
(C) Expansion valve
(D) Condenser
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統計: A(48), B(46), C(89), D(341), E(0) #1333498
統計: A(48), B(46), C(89), D(341), E(0) #1333498