The bedplate must be rigid enough to support the weight of the rest of the engine and mai

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The bedplate must be rigid enough to support the weight of the rest of the engine, and maintain the crankshaft, which sits in the bearing housings in the ______, in alignment.

A.longitudinal girders

B.transverse girders

C.fore girders

D.aft girders

请帮忙给出正确答案和分析,谢谢!

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