Air cocks usually positioned at the_______in a ci

职业技能鉴定 已帮助: 时间:2024-06-14 19:49:18

Air cocks, usually positioned at the_______in a circulating system, is used to get rid of the air in the system.
A.bending joint
B.expansion tank
C.weld
D.the highest point
请帮忙给出正确答案和分析,谢谢!

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