一般来说,MIS从职能结构上进行横向划分时,可分成高层战略层、中层( )和基层执行层。
A.指挥层
B.战术层
C.计划层
D.操作层
参考答案:B
This phenomenon still has many of them wondering their heads.
A.fidgeting
B.meditating
C.worrying
D.scratching
下面的4个p地址,属于A类地址的是 (53) 。
A.10.10.5.168
B.202.119.230.80
C.168.10.0.1
D.224.0.0.2