单选题下面给出的是数码相机的一些性能参数： 角片分辨率W.相片品质等级 Ⅰ．色彩深度 Ⅱ．CCD像素数目 Ⅲ．相片分辨率 Ⅳ．相片品质等级 上述哪些参数是用户可以设置的?

单选题若某线性表中最常用的操作是在最后一个元素之前插入和删除元素，则采用______最节省运算时间。 A．单链表 B．仅有头指针的单循环链表 C．仅有尾指针的单循环链表 D．双链表

单选题软件的复杂性主要体现在程序的复杂性。______是度量软件复杂性的一个主要参数。若采用Mc-Cabe度量法计算环路复杂性，则对于下图所示的程序图，其环路复杂度为______。

单选题The traditional model for systems development was that an IT department used ______ which is a process-centered technique, and consulted users only when their input or approval was needed. Compared with traditional methods, many companies find that JAD allows ______ to participate effectively in the requirements modeling process. When properly used, JAD can result in a more accurate statement of system requirements, a beret understanding of common goals, and a stronger commitment to the success of the new system. RAD is a ______ technique that speeds up information systems development and produces a functioning information system. While the end product of JAD is a(an) ______, the end product of RAD is the new information system. The RAD model consists of tour phases. During the ______, users interact with systems analysts and develop models and prototypes that represent all system processes, outputs, and inputs.

单选题（ ）不是采用MVC（模型-视图-控制器）体系结构进行软件系统开发的优点

单选题好的OOPL应该至少支持一些原则，下述 (45) 不属于这些原则。 A．开放的对象 B．类和实例的概念 C．类间的继承性 D．多态

单选题以太网中采用的CSMA/CD算法为 (61) 。

单选题在程序运行过程中， (49) 将方法与特定的对象动态地联系在一起，使得不同的对象在使用同样的方法时，可以因对象的状态不同而产生不同的行为，从而使得方法对具体的对象具有个性。

单选题无线局域网是计算机网络与无线通信技术相结合的产物，无线局域网的IEEE 802.11系列标准中， (61) 标准是应用最广泛的。在无线局域网的主要工作过程中，用于建立无线访问点和无线工作站之间的映射关系的过程是 (62) 。

单选题某公司计划开发一种产品，技术含量很高，与客户相关的风险也很多，则最适于采用（ ）开发过程模型。

单选题正式的技术评审FTR(Formal Technical Review)是软件工程师组织的软件质量保证活动，下面关于FTR指导原则中不正确的是______。 A．评审产品，而不是评审生产者的能力 B．要有严格的评审计划，并遵守日程安排 C．对评审中出现的问题要充分讨论，以求彻底解决 D．限制参与者人数，并要求评审会之前做好准备

单选题系统流程图是一种传统工具，它用于描述 (11) 。 A．物理模型 B．逻辑模型 C．数据处理 D．控制过程

单选题 (50) 模式将对象组合成树形结构以表示“部分一整体”的层次结构，并使得用户对单个对象和组合对象的使用具有一致性。 A．桥接(Bridge) B．外观(Facade) C．修饰(Decorator) D．组合(Composite)

单选题通常， (64) 应用于保护被中断程序现场等场合。

单选题Prior to the UML, there was no clearleading (66) Ianguage. Users had to choose from among many similar modeling languages with minor differences in overall (67) power. Most of the modeling languages shared a set of commonly accepted concepts that are expressed slightly differently in various languages. This lack of (68) discouraged new users from entering the OO market and from doing OO modeling, without greatly expanding the power of modeling. Users longed for the industry to adopt one, or a very few, broadly supported modeling languages suitable for (69) usage. Some Vendors were discouraged from entering the OO modeling area because of the need to support many similar, but slightly different, modeling languages. In particular, the supply of add-on tools has been depressed because small vendors cannot afford to support many different formats from many differem (70) modeling tools. It is important to the entire OO industry to encourage broadly based tools and vendors, as well as niche products that cater to the needs of specialized groups.

单选题特洛伊木马一般分为服务器端和客户端，如果攻击主机为X，目标主机为Y，则{{U}} (8) {{/U}}。

单选题人耳能听得到的音频信号频率范围是______。 A.300～3400Hz B.20Hz～20kHz C.10Hz～20kHz D.20Hz～44kHz