When an engine is starting and has got a sufficiently high speed, say about 20 rpm,（）<br>A:the starting air supply is cut off and fuel is injected into the cylinders<br>B:the fuel feeding is cut off and the turning gear is put in<br>C:the starting air supply is cut off and turning gear is taken out<br>D:the electric blower is shut down and fuel is injected into the cylinders

When an engine is starting and has got a sufficiently high speed, say about 20 rpm,（）
A:the starting air supply is cut off and fuel is injected into the cylinders
B:the fuel feeding is cut off and the turning gear is put in
C:the starting air supply is cut off and turning gear is taken out
D:the electric blower is shut down and fuel is injected into the cylinders

出自：海船船员证

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