单选题The main moving parts of a diesel engine consist of the （） and the pistons.Abedplate, connecting rodsBcrankshaft, the connecting rodsCframes, crossheadsDcrankshaft, the cylinder
单选题
The main moving parts of a diesel engine consist of the （） and the pistons.
A
bedplate, connecting rods
B
crankshaft, the connecting rods
C
frames, crossheads
D
crankshaft, the cylinder
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