If a refrigeration system compressor crankcase is sweating, you should （）.<br>A:add refrigerant to the system<br>B:adjust the thermal expansion valve to the proper setting<br>C:adjust the float valve to the proper holding pressure<br>D:open the hand expansion valve

If a refrigeration system compressor crankcase is sweating, you should （）.
A:add refrigerant to the system
B:adjust the thermal expansion valve to the proper setting
C:adjust the float valve to the proper holding pressure
D:open the hand expansion valve

出自：海船船员证

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