【简答题】展成法加工齿轮的优点是,只要模数和( )相同,一把刀具可以加工任意齿数的齿轮,这种方法的加工精度和生产率一般比较高,因而在机床在齿轮加工机床中应用最为广泛。
【单选题】Lu Xun was ___________ medical student before he turned ___________ great writer.
【单选题】Betty often buys books _____ Lu Xun. [ ]
【判断题】分型面是指分开模具取出塑件和浇注系统凝料可分离接触的表面。
【简答题】句型变化。 1. The book was written by Lu Xun. (改为主动语态) Lu Xun the book. 2. The shoes are made by my mother. (改为否定句) The shoes by my mother. 3. The students wear the school clothes a lot. (改为被动语态) The schoo...
【单选题】______ is known to the world, Lu Xun is a great Chinese writer.
【单选题】压缩空气站的压力通常都高F每台装置所需的(), 且压力波动较大
【单选题】Lu Xun said, “ The ____ were made by people.”
【单选题】--- Why do people call the private school Lu Xun Middle School? --- Because it’s _____ the famous writer, Lu Xun.