建立工作分解结构(WBS)的步骤包括( )。
A.划分项目建设阶段
B.确定项目总目标
C.确定项目目标层次
D.确定项目的组成结构
E.建立项目组织结构
参考答案:A,B,C,D
— These days you are always reading fantasy stories. What's up?
— Well, you can't imagine how wonderful they are. I have _____ about them. [ ]
A. walked off
B. washed down
C. become high spot
D. gone wild
在一次古董拍卖活动中,某甲拍得一件物品,取货时发现系赝品,但支票已经交付。如果交易撤销,该支票()
A.仍然有效
B.效力待定
C.无效
D.亦可撤销