[单选题]The term“software（　　）”is used to describe the software engineering activities that occur following delivery of a software product to the customer.
A.analysis
B.maintenance
C.design
D.implementation

[单选题]The term“software （ ）” is used to describe the software engineering activities that occur following delivery of a software product to the customer.
A.analysis
B.maintenance
C.design
D.implementation

[单选题]The term“software（　　）”is used to describe the software engineering activities that occur following delivery of a software product to the customer.
A.analysis
B.design
C.implementation
D.maintenance

[单选题]The language used to describe the language itself is called__________.
A.paralanguage
B.special language
C.metalanguage
D.interlanguage

[单选题]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 infrastucture layer is built with virtualized computestorageand network resources.The platform lay-er 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 infrastucture layer serves as the（请作答此空）for building the platform layer of the cloud.In turn,the platform layer is founda-tion for implementing the（ ）layer for SaaS application.
A.network
B.foundation
C.software
D.hardware