表明组织纵向复杂程度的因素是( )。
A．分工形式B．集权程度C．管理幅度D．管理层次
参考答案：D
--Have you cleaned out the refrigerator _______?
---Yes, I have done it ________. But I haven’t taken out the rubbish ________.
A．yet, yet, yet
B．already, already, already
C．already, yet, already
D．yet, already, yet
