单选题声音信号数字化过程中首先要进行______。
单选题能力成熟度集成模型CMMI是CMM模型的最新版本,它有连续式和阶段式两种表示方式。基于连续式表示的CMMI共有6个(0~5)能力等级,每个能力等级对应一个一般目标以及一组一般执行方法和特定方法,其中能力等级______主要关注过程的组织标准化和部署。 A.1 B.2 C.3 D.4
单选题在某企业的营销管理系统设计阶段,属性“员工”在考勤管理予系统中被称为“员工”,而在档案管理子系统中被称为“职工”,这类冲突称为______冲突。
单选题设有两个子网202.118.133.0/24和202.118.130.0/24,如果进行路由汇聚,得到的网络地址是______。
单选题 (31) data effectively is crucial for success in today's competitive environment. Managers must know how to use a variety of tools. Integrated data takes information from different sources and puts it together in a meaningful and useful way. One of the difficulties of this is the (32) in hardware and software. (33) integration uses a base document that contains copies of other objects. (34) integration uses a base document that contains the current or most recent version of the source document it contains. (35) provides an overview of the program written in "plain" English, without the computer syntax.
单选题5 cache用于存放主存数据的部分复制,主存单元地址与cache单元地址之间的转换工作由______完成。
单选题域表达式ab|R(ab)∧R(ba)转换成为等价的关系代数表达式,所列出的式子中 (47) 是不正确的。SQL中集合成员资格的比较操作“元组NOT IN(集合)”中的“NOT IN”与 (48) 操作符等价。SQL中涉及属性AGE是甭是空值的比较操作,写法 (49) 是错误的。类似于“工资在800至5000之间”这种约束,是属于DBS的 (50) 功能。 设关系模式Q是3NF模式,那么, (51) 这种提法是不正确的。
单选题面向对象程序设计语言为______提供支持。 A.面向对象用例设计阶段 B.面向对象分析阶段 C.面向对象需求分析阶段 D.面向对象实现阶段
单选题某软件工程项目各开发阶段工作量的比例如表4-1所示。 表4-1 工作量比例 需求分析 概要设计 详细设计 编 码 测 试 0.29 0.13 0.17 0.10 0.31 假设当前已处于编码阶段,3000行程序已完成了1200行,则该工程项目开发进度已完成的比例是______。
单选题单个磁头在向盘片的磁性涂层上写入数据时,是以 (68) 方式写入的。 A.并行 B.并-串行 C.串行 D.串-并行
单选题若一个程序语言可以提供链表的定义和运算,则其运行时的______。
单选题开一闭原则(Open-Closed Principle,OCP)是面向对象的可复用设计的基石。开一闭原则是指一个软件实体应当对 (23) 开放,对 (24) 关闭;里氏代换原则(Liskov Substitution Principle,LSP)是指任何 (25) 可以出现的地方, (26) 一定可以出现。依赖倒转原则(Dependence Inversion Principle,DIP)就是要依赖于 (27) 而不依赖于 (28) ,或者说要针对接口编程,不要针对实现编程。
单选题WWW页面访问的大致过程如下:用户在浏览器中输入要访问的WWW页面的 (48) 地址(http://hostnane/dirctory/file):浏览器通过 (49) 查询上述输入信息所指的Web服务器的IP地址;浏览器通过网络与该IP地址处的Web服务器的 (50) 服务端口间建立一条 (51) 连接;浏览器依照相关协议发送 (52) 命令;Web服务器根据命令取出文档,发送回来:浏览器释放连接,显示该文档。
单选题The purpose of the requirements definition phase is to produce a clear, complete, consistent, and testable (36) of the technical requirements for the software product. During the requirements definition phase, the requirements definition team uses an interative process to expand a broad statement of the system requirements into a complete and detailed specification of each function that the software must perform and each (37) that it must meet. The starting point is usually a set of high level requirements from the (38) that describe the project or problem. In either case, the requirements definition team formulates an overall concept for 'the system and then defines (39) showing how the system will be operated, publishes the system and operations concept document and conducts a system concept review (SCR) . Following the SCR, the team derives (40) requirements for the system from the high level requirements and the system and operations concept using structured or object-oriented analysis. The team specifies the software functions and algorithms needed to satisfy each detailed requirement.
单选题循环链表的主要优点是______。
单选题下面C程序段中count++语句执行的次数为______。 for (int i=1; i<=11; i*=2) for(int j=1;j<=i;j++) count++;
单选题对一待排序序列分别进行直接插入排序和简单选择排序,若待排序序列中有两个元素的值相同,则______保证这两个元素在排序前后的相对位置不变。
单选题某指令流水线由5段组成,各段所需要的时间如图1-5所示。连续输入10条指令时的吞吐率为______。A.10/70△tB.10/49△tC.10/35△tD.10/30△t
单选题以下多媒体素材编辑软件中,______主要用于动画编辑和处理。
单选题A Web browser is simply a terminal emulator, designed to display text on a screen. The two essential differences between an ordinary terminal emulator and a Web browser are that the browser knows how to deal with (26) , and that it has a mechanism for (27) graphical files. Display text, display graphics, and (28) hyperlinks-there's 99 percent of the (29) value. That's not to say that the manufacturers didn't go all-out to attach a hyperactive efflorescence of useless capabilities onto their browsers. Remember when media channels in the browser were a big deal, instead of the clutter you can't wait to delete from your favorites of bookmarks menu? Remember when client-side Java applets were supposed to become the preferred (30) for application development? Remember frames and all their nasty side effects?