In software engineering and systems engineering, （）is a description of a system's behavior as it responds to a request that originates from outside of that system.

A.black box

B.busines srule

C.traceability matrix

D.use case

不属于《中华人民共和国药品管理法》规定的特殊药品是（）

A．麻醉药品

B．精神药品

C．毒性药品

D．放射性药品

E．戒毒药品