弗鲁姆提出的激励理论认为()
A.激励力=期望值*效价
B.人是社会人
C.对于主管来说,最重要的是需求和成就需求
D.激励不是一种简单的因果关系
参考答案:A
It's the fact _____ he doesn't know his own birthday surprises us all.
A.which, which
B.which, that
C.that, that
D.that, which
A.一定指向圆心
B.一定不指向圆心
C.只有在最高点和最低点时指向圆心
D.不能确定是否指向圆心