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问题 单项选择题

根据《建设工程质量管理条例》规定，未经( )签字，建设单位不拨付工程款，不进行竣工验收。

A．业主代表

B．总监理工程师

C．监理工程师

D．项目经理

答案

参考答案：B

单项选择题

X．25网是广泛应用的一种( )。

A．星型局域网

B．环型局域网

C．公用分组交换网

D．光纤分布式数据接口
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单项选择题

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.

68（）

A．elements

B．objects

C．services

D．capability
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