单选题设循环队列Q的定义中有rear和len两个域变量，其中rear表示队尾元素的指针，len表示队列的长度，如图1-9所示(队列长度为3，队头元素为e)。设队列的存储空间容量为M，则队头元素的指针为_____。
单选题McCall软件质量模型从软件产品的运行、修正和转移3个方面确定了11个质量特性，其中______不属于产品运行方面的质量特性。
单选题软件测试是软件开发中不可缺少的活动，通常 (21) 在代码编写阶段进行。检查软件的功能是否与用户要求一致是 (22) 的任务。
单选题设有关系模式Supplier(Sname，Saddress，Item，Price)，其中各属性分别表示供应商名称、供应商地址、货物名称、货物售价，一个供应商供应一种货物则对应到关系中的一个元组．这个关系模式有一些问题，其中不正确的说法是______。
单选题数据库物理设计中一项重要工作是为数据库文件建立合适的索引，以提高数据库的访问效率。若某数据库中存放两个关系：教师(教师编号，姓名)和课程(课程号，课程名，教师编号)，为快速查出某位教师所讲的课程，应该 A)在教师表上按教师编号建立索引 B)在教师表上按名字建立索引 C)在课程表上按课程号建立索引 D)在课程表上按教师编号建立索引
单选题 (17) 限制了创建类的实例数量，而 (18) 将一个类的接口转换成客户希望的另外一个接口，使得原本由于接口不兼容而不能一起工作的那些类可以一起工作。
单选题A typical (11) language contains an applicative sub-language which approximates the mathematical abstractions of "timeless" functions applied to "spaceless' values, where the actual operation sequences and use of storage space during expression evaluation are organized behind the (12) . In this setting, values are data structures of low volume, typically a few computer words or less, which means that an illusion of spacelessness can be realized by having (13) results during expression evaluation stored at the discretion of the language implementation, and effecting parameter (14) and (15) operations through value copying.
单选题给定C语言程序如下： int foo(int x，int y，int d) if(x!=0) if(y==0)d=d/x； else d=d/(x*y)； else if(y==0)d=0； else d=d/y； return d； 当用路径覆盖法进行测试时，至少需要设计______个测试用例。 A．3 B．4 C．5 D．8
单选题The purpose of the requirements definition phase is to produce a clear, complete, consistent, and testable (46) of the technical requirements for the software product. During the requirements definition phase, the requirements definition team uses an iterative 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 (47) that it must meet. The starting point is usually a set of high-level requirements from the (48) that describe the project or problem. In either case, the requirements definition team formulates an overall concept for the system and then defines (49) 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 (50) 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.
单选题对于以下编号为①、②、③的正规式，正确的说法是______。 ①(aa*｜ab)*b ②(a｜b)*b ③[(a｜b)*｜aa]*b
单选题关于编译程序进行词法分析的说法中，不正确的是______。
单选题在UML图中，一张交互图显示一个交互，由一组对象及其之间的关系组成，包含它们之间可能传递的消息。______不是交互图。
单选题下列关于一个类的静态成员的描述中，不正确的是 (5) 。
单选题若循环队列以数组Q[O..m-1]作为其存储结构，变量rear表示循环队列中队尾元素的实际位置，其移动按rear=(rear+1) mod m进行，变量length表示当前循环队列中的元素个数，则循环队列的队首元素的实际位置是 (2) 。 A．rear-length B．(rear-length+m) mod m C．(1+rear+m-length) mod m D．m-length
单选题软件能力成熟度模型(CMM)的第4级(已定量管理级)的核心是______。
单选题Traditional structured analysis techniques focus upon the flow of (36) within a system. Object-oriented analysis emphasizes the building of real-world models. It examines requirements from the perspective of the classes and objects found in the vocabulary of the (37) domain. Traditional system design method emphasizes the proper and effective structure of a complex system. Object-oriented design method encompasses the process of object-oriented decomposition and a (38) for depicting both logical and physical as well as static and dynamic models of the system under design. Object-oriented programming is a method of implementation in which programs are organized as cooperative collections of objects, each of which represents an (39) of some class, and whose classes are all members of a hierarchy of classes united via (40) relationships.
单选题声音的三要素为音调、音强和音色，其中音色是由混入基音的 (10) 决定的。 若对声音以22.05kHz的采样频率、8位采样深度进行采样，则10分钟双声道立体声的存储量为 (11) 字节。
单选题无向图中一个顶点的度是指图中 (32) 。
单选题为保证用户在网络上边下载边观看视频信息，需要采用______ 技术。 A．流媒体 B．数据库 C．数据采集 D．超连接
单选题给定一个有n个元素的有序线性表。若采用顺序存储结构，则在等概率前提下，删除其中的一个元素平均需要移动______个元素。