A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）<br>A:purge lube oil from the liquid refrigerant<br>B:recover water purged from the system<br>C:separate foul gases from the receiver<br>D:purge non-condensable gases without losing refrigerant

A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
A:purge lube oil from the liquid refrigerant
B:recover water purged from the system
C:separate foul gases from the receiver
D:purge non-condensable gases without losing refrigerant

出自：海船船员证

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