---- Look! Everything here is under construction.

---- Oh, has the building once ___ for exhibition been pulled down, too?

A．having been built

B．being built

C．to be built

D．built

项目的信息( )是通过对各个系统、各项工作和各种数据的管理，使项目的信息能方便和有效地获取、存储；存档、处理和交流。

A．控制

B．管理

C．存储

D．交流