单选题以下关于复杂指令集计算机(ComplexInstructionSetComputer,CISC)的叙述中，正确的是( )。

单选题某学校网络根据应用需求需要在图书馆报告厅部署无线AP。如果采用符合______规范的AP，由于将MIMO技术和OFDM调制技术结合在一起，理论上最高可以提供600Mbps的传输速率。 A．IEEE 802.11b B．IEEE 802.11g C．IEEE 802.11i D．IEEE 802.11n

单选题In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet. The purpose of the testing phase of software development is not to (71) the absence of errors in the programs being tested, but rather to find as many errors as possible. This statement may seem to contradict one's intuitive notion of a successful test of a piece of (72) ; however, a successful test is one in which errors have been found, net one in which no errors have been detected. There are generally two kinds of testing method: human testing and machine testing. In most companies where systems are developed, the first testing that occurs is not machine testing, but rather the detection of errors through (73) , team efforts, referred to as walkthroughs and inspection. With these methods, the author of the program forms a group with others who represent programming expertise or who may be part of the project team. After code has been subjected to the manual testing described above, it is then machine test- ed. Again, the test cases are designed to detect the (74) number of errors. Incremental or integration testing occurs subsequent to unit testing. This means combing modules with those that have already been unit tested. The incremental approach not only tests the (75) of each module, but also the "rippling effects" of errors, and the interfaces among modules.

单选题基于学生-选课-课程数据库中的三个关系： S(S#，SNAME，SEX，AGE、，SC(S#，C#，GRADE、，CC#，CNAME，TEACHER) 若要求查找选修数据库技术这门课程的学生姓名和成绩，将使用关系（ ）

单选题若输入流水线的指令既无局部相关，也不存在全局相关，则 (17) 。

单选题流水线技术是通过并行硬件来提高系统性能的常用方法。对于一个k段流水线，假设其各段的执行时间均相等(设为t)，输入到流水线中的任务是连续的理想情况下，完成n个连续任务需要的总时间为______。若某流水线浮点加法运算器分为5段，所需要的时间分别是6ns、7ns、8ns、9ns和6ns，则其最大加速比为______。

单选题要对消息明文进行加密传送，当前通常使用的加密算法是（ ）。

单选题下列关于关系运算的叙述中，正确的是 (60) 。

单选题如下是一个稀疏矩阵的三元组法存储表示和相关的叙述： 行下标 列下标 值 1 2 6 2 4 7 2 1 4 3 2 6 4 4 1 5 2 1 5 3 6Ⅰ. 该稀疏矩阵有5行Ⅱ. 该稀疏矩阵有4列Ⅲ．该稀疏矩阵有7个非0元素这些叙述中哪个(些)是正确的是 (36) 。

单选题在CMM 模型中属于4 级以上的关键过程域是 (26) 。

单选题______是指对一组类似资源提供一个通用的抽象接口集，从而隐藏其属性与操作之间的差异，并允许通过一种通用的方式来使用和维护资源。

单选题A．P→QB．Q→pC．D．

单选题若

单选题以下关于企业资源规划(ERP)的叙述中，错误的是______。 A．购买使用一个商业化的ERP软件，转化成本高，失败的风险也很大 B．除了制造和财务，ERP系统可以支持人力资源、销售和配送 C．ERP为组织提供了升级和简化其所用的信息技术的机会 D．ERP的关键是事后监控企业的各项业务功能，使得质量、客户满意度、工作成果等可控

单选题在数据库设计的需求分析阶段，业务流程一般采用 (40) 表示。 A．数据流图 B．E-R图 C．程序结构图 D．功能模块图

单选题A．构件图 B．协作图 C．状态图 D．部署图

单选题为配合防疫部门对H1N1流感的防控，某机场拟建设旅客体温监测系统，对每位出入机场的乘客进行体温测量并根据阈值报警，评价该系统最重要的指标是______。 A．存储容量 B．成本收益 C．系统误差 D．响应速度

单选题IEEE 802．16工作组提出的无线接入系统空中接口标准是________，它比Wi-Fi的覆盖范围更大，数据速率更高。

单选题In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet. To a router, a flow is a (71) of packets that share the same characterstics, such as traveling the same (72) , using the same (73) , having the same kind of security, and so on. A router that supports the handling of flow labels has a (74) table. The table has an entry for each Active flow label; each entry defines the (75) required by the corresponding flow label.