模柄轴心线对上模座上平面垂直的垂直度误差应在全长范围内()
A、不大于0.01mm
B、不大于0.05mm
C、不小于0.01mm
D、不小于0.05mm
参考答案:B
The rain has stopped. Please _____ your umbrellas. [ ]
A. put away
B. put off
C. kept up
D. kept on
()是对职业病患者采取的保护措施。
A、治疗
B、辞退
C、加薪
D、继续有害作业岗位