在协议规定的IS95A的硬切换方案中,采用纯软件方法实现的是()
A、PBU
B、PBD
C、RTD
D、RBD
参考答案:C
钠尿肽由心、脑分泌的一种多肽激素,在机体中起排钠、利尿、扩张血管的生理作用。()
An architectural style defines as a family of such systems in terms of a(71) of structural organization. More specifically, an architectural style defines a vocabulary of(72) and connector types, and a set of(73)on how they can be combined. For many styles there may also exist one or more(74)that specify how to determine a system’s overall properties from the properties of its parts. Many of architectural styles have been developed over the years.The best-known examples of(75)architectures are programs written in the Unix shell.
A.pattern
B.data flow
C.business process
D.position level