【单选题】Determine the upper limit of Ra for the surface marked with 2. (Single option: 10 points )
【单选题】Determine the roughness upper limit for the finest surface of the drawing. (Single option: 10 points)
【单选题】Determine the upper limit of Ra for the surface 1. (Single option: 10 points)
【单选题】Determine the upper limit of Ra for the surface marked with 1. (Single option: 10 points)
【单选题】Determine the upper limit of Ra for the surface 1. (Single option: 10 points)
【简答题】一对年轻夫妇带着他们4岁的儿子驾车来到服务站,对爱车(世嘉2.0 手动)进行1万5千公里的常规保养,如何进行客户接待?
【单选题】Determine the upper limit of Ra for the surface 1. (Single option: 10 points)