单项选择题
“Stand by an engine” means （）
A.“prepare to stop the engine”
B. “assemble an engine on its bedplate”
C. “make an engine ready for starting”
D. “dismantle an engine”
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单项选择题
A.“prepare to stop the engine”
B. “assemble an engine on its bedplate”
C. “make an engine ready for starting”
D. “dismantle an engine”
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