【单选题】在 Word表格 中选定一列,按Delete键,则 ___
【简答题】A.In the shop. B.In the restaurant. C.In the office. D.In the hotel.
【单选题】自由锻工艺是锻造锻件的基本依据,各种工艺的编制根据()的模式进行。
【单选题】连杆属模锻件;连杆的大小头支撑必须要选择合适的圆角过渡,以减小应力,( )。连杆的杆身一般采用工字形截面,大小头内孔倒角要小,为C0.5,整体渗碳处理,大小头淬火,抗疲劳强度大,抗交变冲击大,同时质量公差要控制+-5g。
【简答题】A.In the northwest. B.In the southwest. C.In the northeast. D.In the southeast.
【简答题】A.in the former B.of the past C.in the early D.in the earlier
【简答题】A.In the department store. B.In the dining hall C.In the bookstore. D.In the department hall