【多选题】以下对职务分析中常用方法适用条件的理解,准确的是( )。
A.
资料分析法一般不单独适用,往往和其他职务分析方法结合使用
B.
现场观察法比较适宜对从事体力劳动和事务性工作的职务进行分析
C.
工作循环周期长、工作状态不稳定的职务,适宜采用工作写实法
D.
在主管人员对所分析的职务比较了解时,适宜采用主管上级分析法
【单选题】Nobody believed his reason for being absent from class he had to meet his father at the airport.
【多选题】以下不适合用观察法进行工作分析的是( )。
【单选题】Why does Tom ask Sally and John to call him?
A.
He wants to meet them at the station.
B.
He wants to invite them to dinner.
C.
He wants them to visit his family.
【单选题】Nobody believed his reason for being absent from the class ________ he had to meet his uncle at the airport.
【单选题】图示为移动从动件盘形凸轮机构从动件的位移曲线。试说明从动件的运动过程?( )
【单选题】Nobody believed his reason for being absent form the class _____ he had to meet his uncle at the air port. [ ]
【简答题】实训二 尖顶对心移动从动件盘形凸轮 设计 图 所示为从动件导路通过凸轮回转中心的尖顶对心直动从动件盘形凸轮机构。今已知从动件的位移线图( 图 b )、凸轮的基圆半径 r b ( 最小半径 r min ) ,凸轮以等角速度 ω 1 顺时针回转,要求绘出此凸轮的轮廓。