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
The computer virus is an outcome of the computer overgrowth in the 1980s. The cause of this term is the likeness between the bio
The computer virus is an outcome of the computer overgrowth in the 1980s. The cause of this term is the likeness between the bio
admin
2010-09-25
75
问题
The computer virus is an outcome of the computer overgrowth in
the 1980s. The cause of this term is the likeness between the biological
virus and the evil program infected with computers. The origin of this
term came an American science fiction "The Adolescence of P-1" written 【S1】______
by Thomas J. Ryan published in 1977. Human viruses invade a living
cell and turn them into a factory for manufacturing viruses. 【S2】______
Therefore, computer viruses are small programs. They replicate by attaching 【S3】______
a copy of themselves to another program.
Once attached by host program, the viruses then look for other programs 【S4】______
to" infect". In this way, the virus can spread quickly throughout a
hard disk or an entire organization. At some points, the situation will be 【S5】______
totally determined by how the virus was programmed. The timing of the
attack can be linked to a number of situations, included a certain time 【S6】______
or date, the presence of a particular file, the security privilege level of
the user and the number of times a file is used. So-called" benign" viruses
might simply display a message, like the one that infected IBM’s
main computer system last Christmas with a season’s greeting. Malignant
viruses are designed to damage the system. The attack is to wiping 【S7】______
out data, to delete files or to format the hard disk.
There are two main types of viruses: shell and intrusive system.
Shell viruses wrap themselves around a host program and don’t modify
the original program. Shell programs are easy to write, that is why about 【S8】______
half of viruses are of this type. Intrusive viruses invade an existing program
and actual insert a portion of themselves into the host program. 【S9】______
Intrusive viruses are hard to write and very difficult to remove with 【S10】______
damaging the host file.
【S9】
选项
答案
actual→actually
解析
词性错误。此处actual用来修饰动词insert,因此应当用副词。
转载请注明原文地址:https://kaotiyun.com/show/Ttz7777K
0
大学英语六级
相关试题推荐
Directions:YourfriendPeterneedstomakeadecisioninchoosingtostudyhistoryorcomputerscience.Hereallylikeshistory
TwinsThesamefactorsthatgiverisetouncannyphysicalsimilaritiesbetweentwins--similaritiesaremirroredingenetics
A、She’samaid.B、Shesellsstovesandrefrigerators.C、She’sanapartmentmanager.D、She’sarealestateagent.C语义推断题女士在男士一家离
Face-to-facecontactisbynomeanstheonlyformofcommunicationandduringthelasttwohundredyearstheartofmasscommuni
Truancy(逃学)sweepsaroundBritainrecentlyrevealedthousandsofchildrenmissedschool—andturnedupsomeridiculousexcuses,
Truancy(逃学)sweepsaroundBritainrecentlyrevealedthousandsofchildrenmissedschool—andturnedupsomeridiculousexcuses,
Whensomebodycalls,firstofall,thehostwouldofferhimacigaretteandacupoftea.Inthecountryside,【B1】______,oldme
Longbeforethefirst【B1】______arrivedinAmerican,astrangelookinganimallivedonthewestern【B2】______.Itlookedsomewha
Iwalkedallthewaytoseeher__________(结果她去不在家).
随机试题
即期信用证________
患者男,56岁。因腰背部疼痛、间断不规则发热、尿频、尿痛半年余来诊。检测血清蛋白电泳β和γ区带之间有一M蛋白0.395;尿蛋白(+++),白细胞10~15/HP,尿本周蛋白阳性。拟诊为多发性骨髓瘤(MM)。MM引起肾损害最主要的原因是
患者,女,48岁。咳嗽1周,咳嗽时胸背痛,咳吐大量脓痰,素有便秘,舌苔黄,脉滑数。用药宜首选
阻塞性黄疸患者不应表现为
“备案号”栏:()。“合同协议号”栏:()。
当宏观经济趋好时,投资者预期公司效益和自身的收入水平会上升,证券市场人气旺盛,从而推动市场平均价格走低。()
下列关于互斥项目的优选问题的说法中,不正确的有()。
A、 B、 C、 D、 C后一项减去前一项得到
【T1】企业家们希望高科技共享自行车行业的繁荣会使他们致富,同时改变中国城市的交通拥堵。(bike-sharingboom)但梦想有时也会破灭。【T2】据报道,在中国南部城市深圳,有500多辆出租自行车被发现成堆丢弃在大街上。(dumpinhuge
TheMonaLisa,______inItaly,isnowkeptinLouvre,amuseuminParis.
最新回复
(
0
)