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问题详情

To add refrigerant to the low side of an air conditioning system, the refrigerant should be introduced through the （）

A、suction service valve as a vapor

B、suction service valve as a liquid

C、discharge service valve as a vapor

D、charging valve as a liquid

时间：2021-12-31 23:50 关键词：医疗卫生招聘公共基础知识练习二水路交通运输技能考试海船船员考试

答案解析

A

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