●Which one of these statements about connecting to the Internet is true? (68) .(68) A．The Internet can only be used to link computers with same operating systemB．The Internet can be used to connect computers with different ISPC．You must have a telephone l

题目

●Which one of these statements about connecting to the Internet is true? (68) .

(68) A．The Internet can only be used to link computers with same operating system

B．The Internet can be used to connect computers with different ISP

C．You must have a telephone line to connect to the Internet

D．You must have a modem to connect to the Internet

相似考题

1.●An instruction is made up of operations that (68) the function to be performed and operands that represent the data to be operated on.For example，if an instruction is to perform. the operation of (69) two numbers，it must know (70) the two numbers are.The processor′s job is to (71) instructions and operands from memory and to perform. each operation.Having done that，it signals memory to send it (72) instruction.(68) A．smileB．skipC．smokeD．specify(69) A．addB．addedC．addingD．additional(70) A．whenB．whereC．whoD．which(71) A．getB．makeC．pushD．pull(72) A．firstB．lastC．nextD．second

2.●In the following essay，each blank has four choices．Choose the best answer and write down on the answer sheet．Spread spectrum simply means that data is sent in (66) pieces over a number of the discrete frequencies available for use at any time in the specified range．Devices using (67) spread spectrum(DSSS)communicate by splitting each (68) of data into several parts and sending them concurrently on different (69) ,DSSS uses a lot of the available (70) ，about 22 megahertz(MHz)．(66) A．smallB．highC．lowD．long(67) A．direct-sequenceB．discrete-sequenceC．duplicate-sequenceD．dedicate-sequence(68) A．dataB．byteC．packetD．bit(69) A．bitsB．frequenciesC．packetsD．messages(70) A．rateB．velocityC．bandwidthD．period

3.下列复选框构造方法，错误的是 ( )A．setLayout(new GridLayout(3，1))；B．add(new Checkbox("one"，null，true))；C．add(new Checkbox("two"))；D．add(new Checkbox("one"，true))；

4.●Melissa and Love Letter made use of the trust that exists between friends or colleagues.Imagine receiving an (66) from a friend who asks you to open it.This is what happens with Melissa and several other similar email (67) .Upon running, such worms usually proceed to send themselves out to email addresses from the victim's address book,previous emails, web pages (68) .As administrators seek to block dangerous email attachments through the recognition of well-known (69) , virus writers use other extensions to circumvent such protection. Executable (.exe) files are renamed to .bat and .cmd plus a whole list of other extensions and will still run and successfully infect target users.Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the (70) access to your network.(66) A．attachmentB．packetC．datagramD．message(67) A．virtualB．virusC．wormsD．bacteria(68) A．memoryB．cachesC．portsD．registers(69) A．namesB．cookiesC．softwareD．extensions(70) A．crackerB．userC．customerD．client

更多“●Which one of these statements about connecting to the Internet is true? (68) .(68) A.The ”相关问题

  • 第1题：

    In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.

    Spread spectrum simply means that data is sent in(66)pieces over a number of the discrete frequencies available for use at any time in the specified range. Devices using(67) spread spectrum (DSSS)communicate by splitting each(68)of data into several parts and sending them concurrently on different (69), DSSS uses a lot of the available(70), about 22 megahertz (MHz).

    A．small

    B．high

    C．low

    D．long


    正确答案：A

  • 第2题：

    Internet应用中的虚拟现实语言是(68)。

    A．JAVA

    B．HTML

    C．VRML

    D．C++


    正确答案：C
    解析：虚拟现实是利用计算机生成一种模拟环境(如飞机驾驶舱、操作现场等)，通过多种传感设备使用户身临其境，实现用户与该环境直接进行自然交互的技术。WWW上的虚拟现实技术是依靠虚拟现实造型语言(VRML，VirtualRealityMoilingLanguage)语言来实现的。VRML的基本目标是建立互联网上的交互式三维多媒体，基本特征包括分布式、三维、交互性、多媒体集成、境界逼真性等。其主要特点是能够在Internet上创建动态的世界和感觉丰富的虚拟环境。在VRML中，可以创建锚点于VRML空间造型的链接。单击锚点造型将引导VRML浏览顺着链接检索出该链接所连的VRML文件。该文件也可以包含跟踪的链接，而且以此发展下去。顺着一个VRML文件中的链接，用户能在3D空间浏览Web，当用户漫步Internet时，可以从一个虚拟空间跨入另一个空间。

  • 第3题：

    It's said that he's looking for a new job, one_________ he can get more free time.

    A．when
    B．where
    C．that
    D．which

    答案：B
    解析：
    考查定语从句。one是a newjob的同位语，同时one是先行词，后面是个定语从句，由于定语从句he can get more free time不缺少任何成分，说明空格处在从句中作状语，需要用where引导，意为“从新工作中获得更多的自由时间”。如果选which的话，应该是one(a job)from which he can get more free time，故选B。

  • 第4题：

    下列复选框构造方法，错误的是()。

    A．setLayout(newGridLayout(3,1));

    B．add(newCheckbox("one",null,true));

    C．add(newCheckbox("tWO");

    D．add(newCheckbox("one",true);


    正确答案：D

  • 第5题：

    In some countries, _____ is called "equality" does not really mean equal rights for all people.

    (A) which (C) that

    (B) what (D) one

     

     


    选B


    这句话貌似定语从句。而实际上，前面的部分就是状语，后半句与countries没有修饰关系（因为1.后半句缺主语，但空格的位置用countries不能替换，否则语义不对。2.后半句不缺宾语。）所以后半句的（)is called equality作主语.是主语从句。
    在选项中，只有what引导主语从句。
    意思：在一些国家里，所谓平等，并不意味着所有公民的平等权利

  • 第6题：

    68、‏在Internet中，两台主机的类型必须相同才能相互通讯。


    正确

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