Five people were reported _____ in the accident. [ ]

A. killing

B. to be killed

C. killed

D. to have been killed

( )是用系统的观点将已经定义了的功能加以系统化，找出各局部功能相互之间的逻辑关系，并用图表形式表达，以明确产品的功能系统，从而为功能评价和方案构思提供依据。

A．功能整

B．功能评价

C．功能分析

D．功能比较