公共政策学的学科要素有()
A.理论渊源
B.概念体系
C.研究对象
D.研究方法
E.政策主体
参考答案:B, C, D
在我国,传统的设备管理体制是设备的()和制造厂完成,设备的后期管理由使用单位实施。
He was busy with his essay at that time. Otherwise he ____ over to help us.
A.had come
B.would come
C.would have come
D.was coming