A-A+ Visual inspection of chrome-plated piston compression rings reveals a black ring face at t.. 2020-09-18 20:38:32 资格考试 阅读 问题详情 A.has a crown-faceB.exceeds wear limits through normal wearC.has excessive blow-byD.is in good condition请帮忙给出正确答案和分析,谢谢! 参考答案 查看解答