单选题HTML语言中,可使用 标签将脚本插入HTML文档。
单选题MPEG-1视频编码标准中引入了在H.261标准中没有定义的 。
单选题CD音频的抽样频率最高可以达到44.1kHz,可以满足绝大多数音乐欣赏者的听觉需求,这是因为 。
单选题计算机病毒是一种具有破坏性的计算机程序,它是 (71) 。
单选题适合制作三维动画的工具软件是 。
单选题At a basic level, cloud computing is simply a means of delivering IT resources as
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. Almost all IT resources can be delivered as a cloud service: applications, compute power, storage capacity, networking, programming tools, even communication services and collaboration
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.
Cloud computing began as large-scale Internet Service providers such as Google, Amazon, and others built out their infrastructure. An architecture emerged: massively scaled,
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distributed system resources, abstracted as virtual IT services and managed as continuously configured, pooled resources. In this architecture, the data is mostly resident on
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"somewhere on the Internet" and the application runs on both the "cloud servers" and the user"s browser.
Both clouds and grids are built to scale horizontally very efficiently. Both are built to withstand failures of
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elements or nodes. Both are charged on a per-use basis. But while grids typically process batch jobs, with a defined start and end point, cloud Service can be continuous. What"s more, clouds expand the types of resources available file storage, databases, and Web Service and extend the applicability to Web and enterprise applications.
单选题若计算机系统中的进程在就绪、运行和等待3种状态之间转换,进程不可能出现______的状态转换。 A.就绪→运行 B.运行→就绪 C.运行→等待 D.等待→运行
单选题NTSC彩色电视制式中用来表示彩色图像的模型是 (7) 。 A.YUV B.RGB C.YIQ D.HSI
单选题以下关于精简指令集计算(RISC)指令系统特点的叙述中,错误的是______。 A.对存储器操作进行限制,使控制简单化 B.指令种类多,指令功能强 C.设置大量通用寄存器 D.选取使用频率较高的一些指令,提高执行速度
单选题WebSQL is a SQL-like (71) language for extracting information from the web. Its capabilities for performing navigation of web (72) make it a useful tool for automating several web-related tasks that require the systematic processing of either all the links in a (73) , all the pages that can be reached from a given URL through (74) that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common (75) Interface.
单选题以下 (3) 不是声音文件的常用格式。
单选题计算机内存一般分为静态数据区、代码区、栈区和堆区,若某指令的操作数之一采用立即数寻址方式,则该操作数位于 。
单选题若数据A持有事务T1所加的排它锁,那么其他事务对数据A 。 A.加共享锁成功,加排它锁失败 B.加排它锁成功,加共享锁失败 C.加共享锁、加排它锁都成功 D.加共享锁、加排它锁都失败
单选题有关图像属性的下列说法中,正确的是 。
单选题CD音质数字音频信号的数据率是 Kb/s。 A.44.1 B.88.2 C.176.4 D.352.8
单选题
单选题静止压缩图像标准是( )。
单选题某校园网用户无法访问外部站点210.102.58.74,管理人员在Windows操作系统下可以使用 判断故障发生在校园网内还是校园网外。 A.ping 210.102.58.74 B.tracert 210.102.58.74 C.netstat 210.102.58.74 D.arp 210.102.58.74
单选题当用户双击一个文件名时,Windows系统通过建立的______来决定使用什么程序打开该文件。 A.文件 B.临时文件 C.文件关联 D.子目录
单选题某计算机研究所接受上级单位下达的任务开发了一套财务管理的软件,双方事前对该软件的著作权归属未作约定。该软件的著作权应属于______。
