The main moving parts of a diesel engine consist of the （） and the pistons.<br>A:bedplate, connecting rods<br>B:crankshaft, the connecting rods<br>C:frames, crossheads<br>D:crankshaft, the cylinder

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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