A-A+ These acid residues must be prevented from entering the crankcase otherwise the lube oil .. 2020-09-18 20:39:02 资格考试 阅读 问题详情 A.contaminatedB.emulsifiedC.deterioratedD.oxidated请帮忙给出正确答案和分析，谢谢！ 参考答案 查看解答
