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The camshaft drive is designed to maintain proper camshaft speed relative to crankshaft speedIn maintaining this relationship, the camshaft drive causes the camshaft to rotate at（）
A:one half crankshaft speed in a two-stroke cycle diesel engine
B:crankshaft speed in a two-stroke cycle diesel engine
C:two times crankshaft speed in a two-stroke cycle diesel engine
D:one-fourth times crankshaft speed in a four-stroke cycle diesel engine

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出自：海船船员证

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