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
A、It resembles the biological virus. B、It works the same way as the human virus. C、It influences the human as the biological vir
A、It resembles the biological virus. B、It works the same way as the human virus. C、It influences the human as the biological vir
admin
2015-06-23
33
问题
The computer virus is an outcome of the computer overgrowth in the 1980s. The cause of the term "computer virus" is the likeness between the biological virus and the evil program infected with computers. The origin of this term came from an American science fiction "The Adolescence of P-1" written by Thomas J. Ryan, published in 1977. Human viruses invade a living cell and turn it into a factory for manufacturing viruses. However, computer viruses are small programs. They expand by attaching a copy of themselves to another program. Once attached to the host program, the viruses then look for other programs to "infect". In this way, the virus can spread quickly throughout a hard disk or an entire organization when it infects a LAN or a multiuser system. The timing of the attack can be linked to a number of situations, including a certain time or date, the presence of a particular file, the security level of the user, and the number of times a file is used. Likewise, the mode of attack varies. So-called "benign" or the harm-less viruses might simply display a message, like the one that infected IBM’s main computer system last Christmas with a season’s greeting. Malignant or the harmful viruses are designed to damage the system. The attack is to wipe out data, to delete files, or to format the hard disk.
Questions 22 to 25 are based on the passage you have just heard.
22. How did the name of "computer virus" come into being?
23. What is the way that the computer viruses infect the computer system?
24. What is a "benign" virus?
25. What can a "malignant" virus do to your computer?
选项
A、It resembles the biological virus.
B、It works the same way as the human virus.
C、It influences the human as the biological viruses do.
D、It spreads to people who use the infected computers.
答案
A
解析
细节题。文章第二句就给出该问题的答案。选项A的说法正是该定义的简短描述。其中,resemble是“……与……相似的”的意思,而文中的说法是the likeness between…and…,二者是一致的。
转载请注明原文地址:https://kaotiyun.com/show/ZDl7777K
0
大学英语四级
相关试题推荐
A、Mostpeoplebelievewethinkinsymbols.B、Lovingourownwritingisscientificallyreasonable.C、Thewritersandcriticscan
A、Hewasextremelyangry.B、Hewouldn’tforgiveBen.C、Hewasquitedisappointed.D、Hecouldn’tunderstandBen.A由女士提到的Nowonder
A、Hehastoweartwopairsofjeans.B、Hecannottakeanyluggagewithhim.C、Hesaveslittlemoneyfromthetravel.D、Hecannot
A、TheyenjoyedthebeautifulviewontheAtlanticOcean.B、Theydiscussedthedifferencebetweenthedeafandthenormal.C、Cler
A、Gotothechurchwiththeman.B、GotoaChristmasparty.C、Buysomethingspecialforsupper.D、Haveamealwithherfriend.D
Ifyouaretryingtodoyourbitforsustainabilityandsavewaterbytakingshortershowers,thenanewreportonsustainabilit
A、WatchingaTVprogramme.B、Playingapuzzlegame.C、Askingfordirections.D、Studyingforanexam.D女士想知道男士刚才说过的句子在书的哪个位置,男士说靠
A、Toexchangeideas.B、Toprovetheirvalue.C、Toachievesuccessinlife.D、Toovercometheirfearofsilence.D短文开头提到…conversa
Whenyouhavetomeetsomeonefromadifferentculture,beprepared.Ifyouunderstandculturaldifferences,you’llbeabetter
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescientistshadgoodnewstoreport:Thedamageanddeath
随机试题
迷走神经对胰腺分泌的调节是
关于水肿型胰腺炎征象的描述,正确的是
低熔点铅中成分最小的是
患者,男性,58岁。寒战、高热5天,体温39~40℃,咳嗽,咳少许黏液痰,曾用青霉素治疗3天,体温未下降,咳嗽加重,咳出大量脓臭痰。查体:肺部无阳性体征,胸片示可见偏心空洞,壁厚,内壁凹凸不平。由体征及临床检查。可初步判断最可能的诊断是
设计概算是编制和确定建设项目()。
某企业年初未分配利润贷方余额为400万元,本年实现净利润1600万元,按净利润的10%提取法定盈余公积,提取任意盈余公积100万元,向投资者分配利润80万元。不考虑其他因素,则本年末该企业的可供分配利润为()万元。
从公司理财的角度看,与长期借款筹资相比较,普通股筹资的优点是()。
价值规律的自发调节所带来的消极后果有()。
Humansareuniqueamongprimatesforournear-totalbodilyhairlessness.Infact,onlyahandfulofthe5,000orsomammals—most
比较直接插入排序、起泡排序、简单选择排序、快速排序、堆排序、2一路归并排序和基数排序的算法性能,并填写下表:
最新回复
(
0
)