[单选题]（）是交换机系统共有的数据，它通用于所有交换局，不随交换局的安装环境而改变，如控制部件的结构方式、交换网络的控制方式、电源的供电方式等数据
A.系统数据
B.终端数据
C.设备数据
D.用户数据

{{B}}Architecture{{/B}}
1 Architecture is to building as literature is to the printed word. The best buildings are often so well constructed that they outlast their original use. They then survive not only as beautiful objects, but as documents of the history of cultures. These achievements are never wholly the work of individuals. Architecture is a social art.
2 The renaissance brought about an entirely new age, not only in philosophy and literature but in the visual arts as well. In architecture, the principles and styles of ancient Greece and Rome were brought back to life and reinterpreted. They remain dominant until the 20th century.
3 Many kinds of stone are used as building materials. Stone and marble were chosen for important monuments because