问题描述：
[单选]
The removal of（）from lubricating oil will reduce engine wear and possible breakdowns．
A．contaminating water
B．contaminated additives
C．contaminated fuel
D．contaminating impuritie
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答案解析：无
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上一篇：The rim of the piston may contain cut-out portions to accommodate（）when they open．
下一篇：The remaining oil in the lubricating pipes and ducts should be blown out with（）．
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