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问题详情

To add refrigerant to the high side of an air conditioning system, you should introduce the refrigerant through the （）.

A、discharge service valve as a vapor

B、suction service valve as a liquid

C、charging valve as a liquid

D、condenser purge valve as a vapor

时间：2021-12-31 23:50 关键词：船舶电气与船舶安全水路交通运输技能考试海船船员考试

答案解析

C

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