If a fire occurs in the boiler room because of a leaking fuel line to a burner, you shut off the fuel using the（）<br>A:burner valve<br>B:root valve<br>C:quick closing valve<br>D:oil return valve

If a fire occurs in the boiler room because of a leaking fuel line to a burner, you shut off the fuel using the（）
A:burner valve
B:root valve
C:quick closing valve
D:oil return valve

出自：海船船员证

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