A basic premise of OGSA is that everything is(66)by a service: a network enabledentity that(67)some capability through the exchange of messages. Computational resources, storage resources, networks, programs, databases, and so forth are all(68). This adoption of auniform. service-oriented model means that all components of the environment are virtual. Morespecifically, OGSA represents everything as a Grid service: a Web service that conforms(69)a set of conventions and supports standard interfaces for such purposes as lifetime management. This core set of consistent interfaces, from which all Grid services are implemented.(70)the construction of hierarchical, higher - order services that can be treated in a uniform. way across layers of abstraction.
A. defined
B. represented
C. used
D. passed
某出租旧办公楼的租约尚有两年到期,在此最后两年的租期中,每年可收取净租金80万元(没有费用支出),到期后要拆除作为商业用地。预计作为商业用地的价值为1100万元,拆除费用为50万元,该类房地产的资本化率为10%。则该旧办公楼的价值,以下正确的是()。
A. 1000万元
B. 1002.4万元
C. 1600.4万元
D. 1006.6万元