The transmission system transmitting power from the engine to the propeller is composed of shafts, bearings, and（）<br>A:propeller<br>B:flying wheel<br>C:main engine<br>D:crankshaft

The transmission system transmitting power from the engine to the propeller is composed of shafts, bearings, and（）
A:propeller
B:flying wheel
C:main engine
D:crankshaft

出自：海船船员证

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