组织机构信息源的主要特点是（）。
A.系统性
B.及时性
C.权威性
D.易用性
E.垄断性
参考答案：C, E
--- Would she mind playing against her former teammates?
--- _________ She is willing to play against any tough players.
A．I think so.
B．I’m not surprised.
C．Of course.
D．Not likely!
下列属于动物和植物共有特征的是[ ]
A．光合作用
B．捕食
C．排出体内废物
D．向光性
