单项选择题
执行下面的一段C程序后,输出结果变量应为______。
A.5,2,3
B.-5,-12,-7
C.-5,-12,-17
D.5,-2,-7
点击查看答案&解析
<上一题
目录
下一题>
热门
试题
未分类题
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 infrastructure layer is built with virtualized computer,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( )for building the platform layer of the cloud.In turn,the platform layer is a foundation for implementing the( )layer for SaaS applications.问题1选项A.connectedB.implementedC.optimizedD.Virtualized问题2选项A.replacementB.switchC.substituteD.synonym(同义词)问题3选项A.abilityB.approachC.functionD.method问题4选项A.networkB.foundationC.softwareD.hardware问题5选项A.resourceB.serviceC.applicationD.software
点击查看答案
未分类题
给定关系模式R(U,F),U={A,B,C,D},函数依赖集F={AB→C,CD→B}。关系模式R( ),且分别有( )。若将R分解成ρ={(ABC),(CDB)},则分解ρ( )。问题1选项A.只有1个候选关键字ACBB.只有1个候选关键字BCDC.有2个候选关键字ACD和ABDD.有2个候选关键字ACB和BCD问题2选项A.0个非主属性和4个主属性B.1个非主属性和3个主属性C.2个非主属性和2个主属性D.3个非主属性和1个主属性问题3选项A.具有无损连接性、保持函数依赖B.具有无损连接性、不保持函数依赖C.不具有无损连接性、保持函数依赖D.不具有无损连接性、不保持函数依赖
点击查看答案
相关试题
某省针对每年举行的足球联赛,拟开发一套信...
某大学为进一步推进无纸化考试,欲开发一考...
某进程有4个页面,页号为0~3,页面变换...
在关系R(A1,A2,A3)和S(A2,A3,A...
部门、员工和项目的关系模式及它们之间的E...