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The purpose of the purge valve at the top of the condenser in a refrigerating system is to()

单选题
2022-06-23 23:16
A、remove any air that may accumulate in the system
B、take out unpleasant fumes from the refrigerant
C、vent off excess refrigerant in an emergency
D、permit opening the refrigerating system for cleaning and inspecting
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正确答案
A

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