— What do you know about the traffic accident ______ yesterday?

— It was the drunken driver who was ______ for it.

A．occurred; to blame

B．occurring; to blame

C．to be occurred; to be blamed

D．occurring; to be blamed

1995年Kruchten提出了著名的“4+1”视图，用来描述软件系统的架构。在“4+1”视图中，______用来描述设计的对象模型和对象之间的关系；______描述了软件模块的组织与管理；______描述设计的并发和同步特征。

A．逻辑视图
B．用例视图
C．过程视图
D．开发视图