领导效能的基本内容包括
A．时间效能
B．用人效能
C．决策办事效能
D．结构效能
E．组织整体贡献效能
参考答案：A,B,C,E
He had his camera ready____ he saw something that would make a good picture.
A．even if
B．if only
C．in case
D．so that
当采用立井开拓方式时，主井是专门用作（）的井筒。
