网络设计的目标除了可扩展性,还包括()
A.最低的运作成本
B.可管理性
C.不断增强的性能
D.安全可靠性
参考答案:A, B, C, D
Those ____ things need water and air, or they will not keep themselves ____. [ ]
A. live; living
B. living; alive
C. alive; lively
D. lively; live
资产证券化