【多选题】文献:802.1BR-2012 - IEEE Standard for Local and metropolitan area networks--Virtual Bridged Local Area Networks--Bridge Port Extension.IEEE Std 802.1BR-2012
B.
文献题目是: IEEE Standard for Local and metropolitan area networks--Virtual Bridged Local Area Networks--Bridge Port Extension
C.
标准号是 IEEE Std 1722-2012
【判断题】单位变动成本和固定成本总额在相关范围内不随业务量的变动而变动。
【单选题】流过某元件的电流与其端电压的变化率成正比,比例系数为0.5,则该元件是( )。
【多选题】文献:IEEE Standard for Local and metropolitan area networks--Virtual Bridged Local Area Networks--Bridge Port Extension.IEEE Std 802.1BR-2012
B.
文献题目是: IEEE Standard for Local and metropolitan area networks--Virtual Bridged Local Area Networks--Bridge Port Extension
C.
标准号是 IEEE Std 1722-2012
【单选题】在相关范围内,固定成本表现出以下特点( )
【单选题】I’ve become good friend with several of the student in my school _______I meet in the English speech contest last year.