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Cloud computing provides on-demand service to users by using distributed computing and（ ）resource management.
A.network
B.virtual
C.centralized
D.specialized
B.virtual
C.centralized
D.specialized
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解析：翻译：
云计算利用分布式计算和（72）资源管理技术按需提供服务。
A. 网络 B. 虚拟化 C. 集中的 D. 特殊的
云计算利用分布式计算和（72）资源管理技术按需提供服务。
A. 网络 B. 虚拟化 C. 集中的 D. 特殊的
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Cloud computing is a phrase used to describe a variety of computing concepts that involve a large number of computers （ ）through a real-time communication network such as the Internet．In science，cloud computing is a （ ）for distributed computing over a network，and means the （ ）to run a program or application on many connected computers at the same time．The architecture of a cloud is developed at three layers： infrastructure，platform，and application，The infrastructure layer is built with virtualized compute，storage，and network resources．The platform layer is for general-purpose and repeated usage of the collection of software resources．The application layer is formed with a collection of all needed software modules for SaaS applications．The infrastructure layer serves as the（请作答此空）for building the platform layer of the cloud． In turn，the platform layer is a foundation for implementing the（ ）layer for SaaS applications．A.network
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Cloud-computing providers offer their“services”according to differentmodels,which happen to form a stack（ ）,platform as a service(Paas),software as a service(SaaS). A.hardware as A.service(Haas)
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Cloud computing provides on-demand service to users by using distributed computing and（ ）resource management. A.network
B.virtual
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判断题云计算的英文是Cloud Computing。（）A
对B
错
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