----- How did you find _________ long talk given by the headmaster on ___________ Teachers’ Day?

-------- Boring. I’d rather he had made it short.

A．a ; the

B．the ; /

C．a ; /

D．the ; the

根据明确的系统目标、结构和系统的属性，用有效的标准测定出系统的性质和状态，然后与一定的评价准则相比较并做出判断，称为( )。

A．系统设计

B．系统量化

C．系统协调

D．系统评价