科学管理的基本特征（）
A.管理制度化
B.管理程序化
C.管理的艺术化
D.管理的数量化
E.管理的人性化
参考答案：A, B, D, E
_________ for two weeks, the village now is short of food.
A．To flood
B．Having flooded
C．Having been flooded
D．Being flooded
However, at times this balance in nature is ________ resulting in a number of possibly unforeseen effects.
A. troubled B. bothered C mixed D. disturbed
