通过工作分析,在组织层面上对工作进行纵向划分形成()
A.职组
B.职系
C.职级
D.职等
E.职位
参考答案:C, D
I felt it hard to keep up with my classmates. But whenever I want to _______, my teacher always encourages me to work harder.[ ]
A. go on
B. give up
C. run away
D. give back
临床最常见的头痛伴剧烈呕吐多提示为
A.偏头痛
B.癫痫
C.椎一基底动脉供血不足
D.神经功能性头痛
E.颅内高压