单选题The accumulation of air and other non-condensable gases in a refrigeration system will （）.Acause a loss of the liquid sealBcreate a vapor lock in the liquid receiverCcollect in the condenserDcause foaming of the oil in the crankcase
单选题
The accumulation of air and other non-condensable gases in a refrigeration system will （）.
A
cause a loss of the liquid seal
B
create a vapor lock in the liquid receiver
C
collect in the condenser
D
cause foaming of the oil in the crankcase
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