物业服务企业的特征包括( )。
A.多为全民所有制物业服务企业
B.以盈利为目的
C.是独立的企业法人
D.具有一定的公共管理性质的职能
E.属于服务性企业
参考答案:C,D,E
We _____ finish it ahead of time, though it was such a tough task.
A. could B. would C. were able to C. ought to
鼠疫的主要传播媒介为()
A.恙螨
B.旱獭的长须山蚤
C.革螨
D.鼠蚤
E.白蛉