---Have you read the book?

---Yes. But that one is _____worth reading. I suggest you______ it if you have time.

A．best; read

B．well; read

C．better; read

D．more; should read

信息系统是一个非常广泛的概念，它一般指具有收集、存储、整理和传播各类型信息的( )集合体。

A．有完整功能

B．有决策功能．

C．有自动化处理功能

D．有专家支持功能