At least （） cylinders in four-stroke engine will be configured to ensure that the engine can be started with the crankshaft at whatever position.<br>A:6<br>B:2<br>C:12<br>D:8

At least （） cylinders in four-stroke engine will be configured to ensure that the engine can be started with the crankshaft at whatever position.
A:6
B:2
C:12
D:8

出自：海船船员证

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