当卡盘本身的精度较高，装上主轴后（）大的主要原因是主轴间隙过大。 A．间隙 B．径跳 发布时间：2020-04-23 00:28 │ 来源：www.tikuol.com 题型：单项选择题 问题： 当卡盘本身的精度较高，装上主轴后（）大的主要原因是主轴间隙过大。A．间隙B．径跳C．轴窜D．圆跳动
题型：单项选择题 从方框中选择最佳选项完成对话。A. Yes, I have. B. What are your parents' jobs? C. Have you got a sister? D. It's a big family. E. An uncle. A: Are there three people in your family, Xiaowei? B: No, there aren't. There are six people in my family. __1__A: Have you got grandparents? B: __2__ They are in Shanghai now. A: __3__B: My parents are teachers. They are in my school. A: Have you got an aunt or an uncle? B: __4__ He's a doctor. A: __5__ B: No, I haven't. 查看答案