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单选题
滑油来自供油系统，用于润滑和冷却发动机内部部件。
A
Oil comes from the supply system to lubricate and cool internal components in the engine.
B
Oil coming from the scavenge system will supply lubrication and cooling for the internal components of the engine.
C
The oil supply system will give lubrication and cooling for the internal components of the engine.
答案解析
正确答案：A
相关知识点：
滑油润滑冷却发动机内部件
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