The period of valve overlap is when （）. -题库考试答案搜索网

The period of valve overlap is when （）.

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2022-01-01 07:48

A、the inlet valve is open
B、the exhaust valve is open
C、both valves are close
D、both valves are ope

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正确答案

D

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标签：船舶动力装置海船船员考试

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