检验铣床分度头蜗杆一转内系统分度误差时,应在分度手柄每转1/z转,便通过光学分度头读出铣床分度头实际回转角与名义回转角的误差。
参考答案:对
---How often do you go to Chinese classes, Mrs. White?
----___________. That is Monday, Wednesday and Friday.
A.Every three days
B.Twice a week
C.Once a week
D.Every other day
目前,我国应用的死亡标准是()
A.心肺死亡
B.脑死亡
C.心肺与脑死亡
D.深度昏迷
E.心脏搏动停止