有关非正式团体的含义，不恰当的是
A．包括俱乐部、兴趣爱好小组等
B．不以组织纪律为手段
C．具有自愿性特点
D．其领袖人物的意见无足轻重
参考答案：D
A project life cycle is a collection of generally sequential project (73) whose name and number are determined by the control needs of the organization or organizations involved in the project. The life cycle provides the basic (74) for managing the project, regardless of the specific work involved.
（74）处填（）。
A．plan
B．fraction
C．main
D．framework
植物分类的基本单位包括几级（）
A.6级；
B.7级；
C.8级；
D.5级；
