单选题The purpose of the flywheel of a diesel engine is to （）.Acounterbalance the crank throws on the crankshaftBkeep the engine running smoothly between power strokeCprovide a belt-driving surface for the operation of auxiliary machineryDprevent the engine from overspeeding
单选题
The purpose of the flywheel of a diesel engine is to （）.
A
counterbalance the crank throws on the crankshaft
B
keep the engine running smoothly between power stroke
C
provide a belt-driving surface for the operation of auxiliary machinery
D
prevent the engine from overspeeding
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