出自:操作系统

假设n个元素按照一定的顺序进栈和出栈,已知第一个出栈的元表是最后一个进栈的元素,则()是正
确的
下列()不是磁盘设备的特点。
在下面的//O 控制方式中,需要CPU千预最少的方式是()。
在硬件和环境相同的条件下,一个作业在()存储管理系统中运行的时间最长。
在数字加密算法中,DES 算法是一种()。
使命令的执行结果不在屏幕上显示,而将之引向另一个文件,功能称为()。
对文件空闲存储空间的管理,在 MS-DOS 中采用的是()。
磁盘属于
在操作系统中,使用户所编制的程序与实际使用的物理设备无关是由()功能实现的
在分页存储管理系统中,从页号到物理块号的地址映射是通过()实现的。
引入多道程序技术后,处理机的利用率()。
在单一处理机上执行程序,多道程序的执行是在()进行的,
欲发送10个分组报文测试于主机abc.edu.cn的连通性,应使用的命令是()。
与“ifup eth0”命令功能相同的命令是()。
在shell中,使用()命令可显示磁盘空间。
从后台启动进程,应在命令的结尾加上()。
设置Apache服务器主目录的路径是()。
在以下的文件中,屈于Apache主配置文件的是()。
Apache服务器是()
DNS域名系统主要负责主机名到()的解析。
若一台计算机的内存为128M,则交换分区的大小一般设为()。
你是Linux系统员,在/root下编写一个脚本文件showenv。你运行此脚本,命令如下/showenv PWD
结果显示错误提示如下:bash:,/showennv:权限不够 于是你运行命令Il showenv显示如下:-rw-r-r--1 root root 155 6月19 09 :58 showenv你想实现只有自己可以运行此脚本,而其他帐户不能运行,你需要运行命令()。
进程的状态转换不可以是()
一个长度为n的顺序表中,在第i个元素前插入一个新元素时,需要向后移动()个元素
一个栈的元素进栈顺序是1、2、3、4、5,则出栈顺序不可能是()
下列关于分段存储管理描述正确的是()
一个计算机系统由()组成
评价操作系统的性能主要从以下()方面
就图的邻接矩阵而言,()是正确的。
从未排序子表中依次取出元素放入到已排序子表的正确位置上的方法是()
幻灯片打印内容的选择有()。
A备注页
B 讲义
C幻灯片
D大纲视图
微机中使用的鼠标器可以连接在计算机主机的()上
A 并行接口
B串行接口
CPS/2 接口
D USB 接口
以下关于进程的执行说法正确的是()。
A进程在单处理器中可以并行执行
B进程之间按顺序执行时,彼此间是独立的
C 并发进程间一定共享某些资源
D当进程再次执行时,必定获得相同的结果,我们称为进程具有“可再现性”
演示文稿发布到 Web 服务器必须具备( )条件
A 演示文稿按 HTML 格式保存
B有 FTP 服务器的支持
C具有访问权限
D 必须打包
网络由()等组成。
A计算机
B网卡
C通信线路
D网络软件
在“其它格式”工具栏上提供了()按钮快速实现行间距设置,
A 单倍行距
B国定值

C 1.5 倍行距
D 2 倍行距
在计算机性能指标中,用户可用的内存储器容显通常是包含()
A ROM 的容量
BRAM 的容量
C Cache 的容量
D 硬盘的容量
进程的并发执行不具有()。
间断性
通信性
封闭性
可再现性
树形目录结构的优势表现在()。
A 可以对文件重命名
有利于文件的分类
提高检素文件的速度
能进行存取权限的限制
向单元格输入数据一般有()等多种方式
A 直接输入数据
B自动生成
C利用“埴充柄”输入数据
D从外部导入数据
Huge, scenic and sparsely populated, Canada was rated by the United Nations Human Development Index as the best country to live in. The land of new hopes and opportunities attracts people worldwide.


(2) Very few people really understand or know anything about the process of immigration application. First of all a potential immigrant needs to know something about the rules and regulations. The Canadian Government has designed a point system to assess potential independent immigrants. Emphasis is placed on education, practical training, experience and the likelihood of successful settlement in Canada. This means that people with a bachelor degree of some kind and advanced technical or other skills that are in demand in Canada are more likely to be accepted. The Government also adds weight to an application if the individual is fluent in Canada’s official languages, English and French. Therefore someone with a good command of either English or French will have a better chance. Another way to immigrate to Canada is via the immigrant investor program. This provides an opportunity for experienced business persons to immigrate to Canada after making a substantial investment in a provincial government-administered venture capital fund.


( 3 ) If you think you fulfill all the criteria you can easily apply for immigration by yourself. The Canadian Government clearly states: “Any one can apply without the help of a third party”. As often happens in these situations, unscrupulous agents can take advantage of people who think that the only way they can immigrate is by paying huge amounts of money. People who want to become immigrants should carefully investigate the reputation and qualifications of third parties who offer their services for a fee. So why bother to use an immigration agent if application is easy?


( 4 ) Actually there are many good reasons why so many intending migrants use such services. What the least competent and reliable professionals do is simply fill out forms and send them to the Canadian Embassy with the required fees and documents! Some individuals (who can be referred to as “unscrupulous agents”) may fail to send in the correct documents, delay the clients’ application delivery, talk an unqualified candidate into buying their services despite the high possibility that the visa application will be refused or even suggest their clients supply fraudulent documents that are often discovered by the Canadian Embassy. Conversely, a highly qualified and reliable professional service justifies its costs for the comprehensive services it provides. A professional and reliable immigration firm should provide these services for its clients:


(5) Firstly, an intending immigrant must first be well aware of his chances of success. A substantial amount of necessary payment and the potential impact on an applicant’s life can be avoided. A highly experienced immigration professional is capable of assessing a client’s chances of success with an extremely high degree of certainty. In the case of a most unfavorable application, he discourages the client’s application.


(6) Secondly, depending on an effective interpretation of the selection rules as well as accumulated experiences, an experienced immigration professional highlights the applicant’s qualities and helps persuade visa officials that the applicant is worthy of selection and meets all the selection criteria. If a person doesn’t seem qualified, the adviser tries to find out other alternatives that may exist to make him a successful applicant. Such instances where qualified persons were discouraged from making applications are numerous. For example, a computer programmer whose professional skills are highly sought after in the Canadian labor market may be considered unqualified by the variance of their job description to the specifications in the National Occupational Descriptions published by the Canadian Government. An experienced immigration professional avoids areas of potential misunderstanding and best ensures that all the documents submitted and answers given at an interview will support a successful application.


(7) Thirdly, the presentation or package of the application often makes a decisive impression on the visa officer. An experienced immigration professional identifies what type of information can be supplied that is most likely to favorably impress the visa officer considering the application.


(10) Sixthly, a seasoned immigration professional helps identify potential problems and provides ad


1. “People with a bachelor degree” in Paragraph 2 are ______.


A. holders of a first university degree


B. holders of a second university degree


C. people who have received the highest university degree


D. people who have never been married


2. Business people can immigrate to Canada after they have made a substantial investment ____.


A. in their own country


B. in both Canada and their own country


C. in Canada


D. in either Canada or their own country


3. The writer of this article ______.


A. suggests that an applicant use an immigrant agent even when an application is easy


B. disapproves of using an immigrant agent if application is easy


C. thinks that third parties should not charge a fee for their services


D. believes that all immigration agents are unscrupulous


4. Immigration professionals should ______.


A. suggest their clients supply fraudulent documents


B. delay the clients’ application delivery


C. talk an unqualified candidate into buying their services


D. send in the correct documents


5. In the case of a most unfavorable application, a highly experienced immigration professional


______.


A. encourages the client’s application


B. highlights the applicant’s qualities and helps persuade visa officers that the applicant is Worthy of selection and meets all the selection criteria


C. does not charge a fee for their service


D. discourages the client’s application


6. In the case of clients who do not qualify, an immigration professional ______.


A. needs to know something about the rules and regulations of the Canadian Government


B. explains the reason why their clients’ visa application might be refused and tries to find out ways to improve their circumstances so they become qualified


C. would suggest that they apply for immigration on their own behalf


D. would simply discourage the clients from making application


7. Canada is all the following EXCEPT ______.http://bbs.zikao5.com 自考资料,自考白皮书


A. populous B. large in size


C. beautiful D. thinly populated


8. If you intend to immigrate, ______.


A. you must apply on your own


B. you could either try to apply on your own or seek help from an immigration firm


C. you have to seek the help of a third party


D. you have to make a substantial investment in Canada


9. This passage is ______.


A. narrative B. expository


C. descriptive D. argumentative


10. The most suitable heading for Paragraph 2 is ______.http://bbs.zikao5.com 自考资料,自考白皮书


A. Anticipating problems


B. Either way, you make a choice


C. Two types of immigrants


D. Hiring professionals to apply on your behalf