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全部科目 > 水路交通运输技能考试 > 海船船员考试 > 船舶管理(轮机专业) > 轮机英语 > 船舶辅助机械

单项选择题

A cracked diaphragm in a thermostatic expansion valve will cause the valve to （）.

A.return to a neutral position
B.flood the evaporator
C.open
D.close

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