在管理学中，组织工作这一概念应理解为（）
A.人员群体
B.管理职能之一
C.协作关系
D.组织结构
参考答案：B
41以内2的倍数有[ ]
A．10个
B．20个
C．30个
D．40个
His sacrifices for the country were never officially , which made all of us feel discouraged.
A．acknowledge
B．appealed
C．recommended
D．evaluated
