车号AEI设备综合技术指标考核是如何规定的？
参考答案：
开机率100%、使用率95%以上、准确率99.5%以上。
—What do you think of Wu yanzu ?
—He is very handsome . I know he played ______in a film directed by a famous director . [ ]
A. a leader role
B. a lead role
C. a supporting actress
D. a supporter
数控加工工序集中的特点是（）
A.减少了设备数量
B.减少了工序数目
C.增加了加工时间
D.增加了装夹次数
E.提高了生产率
