首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Viruses are human-made software programs【C1】______specifically to wreak havoc on personal computers and networks. The【C2】______o
Viruses are human-made software programs【C1】______specifically to wreak havoc on personal computers and networks. The【C2】______o
admin
2010-09-10
14
问题
Viruses are human-made software programs【C1】______specifically to wreak havoc on personal computers and networks. The【C2】______of contracting one of these computer viruses over the Internet has increased dramatically. Typically, you get a virus by opening e-mail【C3】______.
Some viruses are relatively【C4】______to individuals. They just【C5】______themselves to【C6】______messages or e-mail themselves to all the people listed in your address book. The sudden flood of email【C7】______mail servers, causing the system to【C8】______.
Other viruses are more【C9】______,and may lie asleep until a certain date. Then they【C10】______to life to do their dirty【C11】______. Sometimes a strange message appears on your screen, or data and programs may be【C12】______. In the worst case, all the contents of your hard drive may be【C13】______out. These【C14】______programs start on one computer, then replicate quickly,【C15】______other computers around the world.
In 1988, a student at Cornell University sent out a virus by【C16】______, nearly【C17】______the Internet to its knees. More recently, the "I Love You" virus caused over $1 billion in lost【C18】______as it【C19】______e-mail systems worldwide. Last year【C20】______, 10, 000 new viruses, worms and Trojan horses were unleashed.
【C1】
选项
A、existed
B、discovered
C、created
D、manufactured
答案
C
解析
动词词义辨析。计算机病毒只能是“创造,设计出来”出来的,不可能是已经有的被发现,discovered。也不可能是已经存在或者是通过机械工程制造出来的。
转载请注明原文地址:https://kaotiyun.com/show/IJ87777K
0
大学英语四级
相关试题推荐
Inrecentyears,moreandmoreforeignersareinvolvedintheteachingprogramsoftheUnitedStates.Bothoftheadvantagesand
A、Childrenofdivorcearealwayshappy.B、Childrenofdivorcesometimesfeelsadbutdon’treallyshowit.C、Childrenofdivorce
DelayedDeliveryStellabadbeenpreparedforherhusband’sdeath.Sincethedoctor’spronouncementofterminalcancer,they
Lowlevelsofliteracy(读写能力)andnumeracy(计算能力)haveadamagingimpactonalmosteveryaspectofadultlife.Testsandintervi
Lowlevelsofliteracy(读写能力)andnumeracy(计算能力)haveadamagingimpactonalmosteveryaspectofadultlife.Testsandintervi
Thename"UnitedNations",coinedbyUnitedStatesPresidentFranklinD.Roosevelt,was【B1】______usedinthe"DeclarationbyUni
BritishpsychologistshavefoundevidenceofalinkbetweenexcessiveInternetuseanddepression,aresearchhasshown.Lee
A、ShethinksAllenisathief.B、ShethinksAllenisclever.C、ShethinksAllentookherearringsbymistake.D、ShethinksAllen
WhyistheSouthPolecoldthantheNorthPole?【M1】______Bothpolarregionsoftheeartharecold,prima
A、Theyconsideredherlazy.B、Theysawsomethingtheyhadneverseen.C、Theyconsideredherfoolish.D、Theysawsomethingfamili
随机试题
机组运行中,给水的pH值应维持在()范围内。
PPD试验,皮肤硬结直径小于5mm为_________反应,当硬结直径为_________为阳性,大于20mm或局部起水泡,组织坏死为_________反应。
免疫组织化学方法中,按照敏感性从高到低进行排列正确的是
血竭含红色树脂酯,从中分离出
上市公司在可转换公司债券转换期限结束的20个交易日前,应当至少发布一次提示公告,提醒投资者有关在可转换债券转换期限结束前的10个交易日停止交易事项。()
年应税销售额已超过小规模纳税人标准的纳税人,未在规定期限内办理一般纳税人登记的,应当在收到《税务事项通知书》后()日内向主管税务机关报送《增值税一般纳税人登记表》。
保险业的纳税期限为( )。
教学过程的主要矛盾是教育者与其所教授的知识之间的矛盾。
在制订课程计划时,应充分考虑到社会、学校、学生等条件的复杂性,给课程计划的执行者一定的自主空间,保证他们能够主动、灵活地落实课程计划。这体现了课程计划设计原则的()
张某作为担保人,介绍赵某向元某和崔某借款50万元。由于赵某一直未还钱,某晚张某寻找机会,将赵某的车钥匙偷走,后开走赵某价值78万元的黑色奔驰越野车,随后交给元某保管。赵某发现后联系张某,张某表示必须在赵某清偿债务后才予以归还。赵某遂报警。在案件调查过程中,
最新回复
(
0
)