—Going outing at weekend is an exciting thing for many urban people.

—________. It has attracted many people.[ ]

A. Go ahead  

B. Never mind

C. I couldn't agree more  

D. You are welcome

软件开发的结构化生命周期方法将软件生命周期划分成( )。

A．定义、开发、运行维护

B．设计阶段、编程阶段、测试阶段

C．总体设计、详细设计、编程调试

D．需求分析、功能定义、系统设计