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2.___是指计算机系统中， 在两个硬件设备之间起连接作用的逻辑电路，它的功能是在各个组成部分之间进行数据交换。
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3. ___主要用于图形数据处理、向显示器传输数据井控制显示器的数据组织式。
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4.一条指令在计算机中的执行时间称为___。
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5.___是指CPU能够同时处理的二进制位bit 数。
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6.软件系统可分为两大类:___软件 和应用软件。
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7.一个单层的___光盘的容量为25GB或27GB,足够一个长达4h的高解析影片。
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9. ___是由苹果公司开发的手持设备操作系统。
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10. Android 是-种基___系统的自由及开放源代码的操作系统，主要应用于移动设备。
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1.如果加密密钥和解密密钥相同，这种密码体制称为___.
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3.计算机网络是一些___计算机系统的集合。
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5.计算机网络核作用范围距离划分可分为___、___、___。
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6.网卡也称___网卡是局域网中基本的部件之一，它是连接___的硬件设备。
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7. ADSL技术称为___，作为一种___方式，可以为用户提供宽带网的所有用业务。
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8. Internet 地址是层次结构地址，___和___两部分组成。
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9.超链接不但可以指向网站、网页，而且可以指向___地址。
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10. DNS 是___的简称，ISP 是___ 的简称，HTTP 是___的简称。
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1.高度为h的完全二叉树中最少有___个结点, 最多有___个结点。
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2.设一棵完全二叉树有128 个结点，则该完全二叉树的深度为___，有___个叶子结点。
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3.一般将数据结构分为线性结构和___两大类。
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4.设某算法原操作执行的次数是3n²+4m-7, 则其时间复杂度用数量级表示为___）。
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5. 一种数据结构的元素集合D和它的二元关系R为D={a,b,c,d,e,f,g,h}R={<a,<b, c，<c,d>, <d, e, <e, f>,<f, g, <g, h>}则该数据结构具有___结构。
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6.一种数据结构的元素集合D和它的二元关系R为D={1，2,3,4，5，6}R= ｛〔1，2〕，〔2，3〕,〔2，4〕， 〔3，5〕，〔3，6〕}则该数据结构具有___结构
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7.设栈S和队列Q的初始状态皆为空，元素a1, a2. a3, a4, a5, a6依次通过一个栈，一个元素出栈后即进入队列Q,若6个元素出队列的顺序是a3a5a4a6a2a1,则栈S至少应该容纳___个元素。
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8.设某棵二叉树中度数为0的结点数为N0,度数为1的结点数为N1，则该二叉树中度数为2的结点数为___; 若采用二叉链表作为该二叉树的存储结构，则该二叉树中共有___个指针域值为空。
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9.设一棵完全二叉树的顺序存储结构中存储数据元素为ABCDEF，则该二叉树的先序遍历序列为___,中序遍历序列为___后序遍历序列为___。
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10.设一棵二叉树的先序序列为ABC,则有___种不同的二叉树可以得到这种序列。
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1.在Windows 7操作系统中文件夹是按___结构组织管理的。
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2.___操作系统是目前全球最大的一个自由软件，它是一个可与商业UNIX操作系统和Windows操作系统系列相媲美的操作系统，具有包括完备的网络应用在内的各种功能。
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3.___是用户对计算机进行配置的重要 工具，默认安装了许多管理程序， 还有
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4. Windows 7操作系统是由___公司开发的。具有革命性变化的操作系统。
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5.要安装Windows7操作系统，系统磁盘分区必须为___格式。
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7.每个文件有且仅有一个文件名，操作系统通过文件名实现对文件的存取。文件名的格式为___.[扩展名]。
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___是图形用户界面中程序和文件的容器，用于存放程序、文档、快捷方式和
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9.通常用文件的___区分不同文件的类型。
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10. 在桌面状态下按,___键可弹出Windows7的“Windows帮助和支持” 窗口。
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1.用户在使用Word 2010编辑、查看或打印已有文档时，首先应当___己有文档。
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2.在Word 2010中为了更好地组织冗长文档的编排，可使用___视图方式。 在这种视图方式中，可以折叠文档以便只看标题、子标题，或者展开查看整个文档。
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If you hear such a rumor,___ it thoroughly.
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The pressure ___causes Americans to be energetic, but it also puts them under a constant emotional strain.
A. to compete
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Having decided to rent a flat, we ___ contacting all the accommodation agencies in the city.
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Mike was being ___for violent tendencies.
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I will___ Mr. Walters on this point.
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What happens in the next few days is___to our success.
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She won’t___that there is a problem.
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This offer is___ for travel before the end of April.
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___ to British universities depends on examination results.
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This traditional ___ is of indigo blue.
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These cigarettes are a ___ of the best tobaccos.
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The tennis players need total ___ during play.
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He ___ that he was innocent.
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Columbus discovered America but did not ___ the new continent.
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The trees ___their foliage every year.
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Make a list of the various ___.
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I am well aware that this is a ___ job.
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I found their kindness quite ___.
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The captain wasn’t ___ on having him in the team.
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They ___ against travelling at night in such a dangerous country.
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He must have had an accident, or he ___ then.
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It wasn’t such a good dinner ___ she had promised us.
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His retail business in the city___ rapidly between the wars.
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Many frogs ___ the sound of their voice using special sacs(囊) in their throat.
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Some old people don’t like pop songs because they cannot ___ so much noise.
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I have kept that portrait where I can see it every day, as it always ___ me of my university days in London.
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You should hire a more ___ manager than the one you currently have.
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Surgeons began to ___ their hands and arms with soap and water before operating.
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He might let something ___ in a moment of weakness.
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