单项选择题
A.refrigerant bubbles in the lube oil
B.refrigerant reducing the lube oil viscosity
C.oxidation of the lube oil from overheating
D.reducing the floc or cloud point of the oil
单项选择题 Which of the processes listed would be the most satisfactory method to use to lower the humidity of the air being circulated by an air conditioning system?（）
单项选择题 In an air conditioning system, low head pressure associated with a reciprocating compressor can be the result of （）
单项选择题 In order to achieve greater dehumidification with an air conditioning system, you should （） Ⅰ.reduce the cooling coil Ⅱ.temperature increase the re-heater temperature