单项选择题
A.either all the way open or all the way closed
B.normally fully open
C.throttled depending on load
D.controlled by liquefied pressure
单项选择题 When the temperature of the refrigerant flowing out from the condenser is below the condensing temperature, it is said to be （）.
单项选择题 The thermal expansion valve controls the amount of refrigerant that is allowed to flow to the （）.
单项选择题 The compressor suction line conveys the refrigerant vapor from （） to （）.