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
专升本
On Oct. 12, 1989, some Chinese scientists were working at the computers to look for the information they needed. Suddenly they s
On Oct. 12, 1989, some Chinese scientists were working at the computers to look for the information they needed. Suddenly they s
admin
2012-05-24
83
问题
On Oct. 12, 1989, some Chinese scientists were working at the computers to look for the information they needed. Suddenly they saw a lot of very bright spots crossing the computer’ s screens. At the same moment the computers were working much slower. To find out what was happening, they stopped their work to check some parts of the computers. To their horror, they found out that most of their stored information was got rid of by computer viruses (病毒). Obviously all these computers had been infected (传染) by computer viruses.
It is said that the computer viruses were made by a group of young men fond of playing tricks. They all have excellent education. They created the viruses just to show their intelligence. This kind of computer viruses are named Jerusalem (耶路撒冷) Viruses. These viruses can stay in computers for a long time. When the time comes the]/ will attack the computers by lowering the functions, damaging normal programs or even getting rid of all the information.
We now come to know that Jerusalem Viruses often attack computers on Fridays and that they are spreading to a lot of computers. Among the countries that suffered computer viruses last year are Britain, Australia, Switzerland and the U.S. But till now, how to get rid of the terrible viruses remains a problem.
The most serious damage caused by the viruses is that______.
选项
A、the computer’s functions are lowered
B、the normal programs are damaged
C、the computers infected by the viruses can no longer be used
D、all the information stored in the computers is gone
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/MgGC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Whichofthefollowingisthemainpsychologicalsymptomofsmokerswhoquit?______.Howmostsmokersfeelimmediatelyaftert
Historianscan’ttelluswhen,whereor【71】thefirstfoodwascooked.Inearliest【72】whenpeoplehadeatentheirfood【73】,
Whatisthemainideaofthepassage?______.Whichofthefollowingistrueaccordingtothepassage?
Idon’tdoubt______shewilllearnalotduringherstayinChina.
Thecowboyistheheroofmanymovies.Heis,eventoday,asymbolofcourageandadventure.Butwhatwasthelifeofthecowboy
Therearetwokindsofmemory:short-termandlong-term.Informationinlongtermmemorycanberememberedatalatertimewheni
Color-blindpeopleoftenfinditdifficultto______betweenblueandgreen.
Believeitornot,Matt,thepeddler,earned______hisbrother,whoisawhitecollarinabigcompany.
Notpayingattentiontoanythinghiscolleaguessay,he______(frequency)doesn’tknowwhat’shappeninginthecompany.
Thispartistotestyourabilitytodopracticalwriting.Youarerequiredtowritesomethingtointroduceyourcompanytothe
随机试题
广域网可以提供面向连接和无连接两种服务模式。对应于两种服务模式,广域网有虚电路和数据报两种组网方式。以下关于虚电路和数据报的叙述中,错误的是________。
炎症时,渗出液的产生最主要的原因是()
关于勃起功能障碍分类的描述正确的是
A.心尖部抬举性搏动B.心前区收缩期搏动C.心底部抬举性搏动D.胸骨上窝抬举性搏动E.右颈部异常搏动风湿性心脏病主动脉瓣狭窄可见
疔疮走黄的内治法则是()
甲公司制定产品标准成本时采用现行标准成本。下列情况中.需要修订现行标准成本的有()。
甲公司为房地产开发企业,2×17年发生有关房地产投资的资料如下:(1)1月1日购入一块土地,并开始在其上建造一栋用于对外出租的写字楼,购入当日董事会即作出完工后对外出租的书面决议,但尚未签订租赁合同。该项土地购买价款为1200万元。为购建写字楼占用了2×
在下一代网络中,信令网关SG完成7号信令系统中ISUP消息内容的转换。()
“六艺”是指()。
在一项有关教学方法的实验中,对于低成就学生而言,教学方法的实验处理是有效的,但是对于高成就学生而言,就没那么有效了。这一现象最可能证明了
最新回复
(
0
)