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
Although we already know a great deal about influenza, it is difficult for epidemiologists(流行病学家), who study infectious disease,
Although we already know a great deal about influenza, it is difficult for epidemiologists(流行病学家), who study infectious disease,
admin
2013-11-11
82
问题
Although we already know a great deal about influenza, it is difficult for epidemiologists(流行病学家), who study infectious disease, to【C1】______when and where the next flu epidemic will occur, and how【C2】______it will be. There are three kinds of influenza virus, known as A, B and C. Influenza C virus is relatively stable and causes mild【C3】______that do not spread far through the population. The A and B types are【C4】______, and are responsible for the epidemics that cause frequent concern. Following any virus attack, the human body builds up antibodies which confer(给予)immunity to that strain of virus, but a virus with the capacity to change its character is able to bypass this【C5】______. Variability is less developed in the influenza B virus, which affects only human beings. An influenza B virus may cause a widespread epidemic but will have little effect if【C6】______into the same community soon afterwards, since nearly everyone will have built up antibodies and will be immune. The influenza A virus, which【C7】______affects animals, is extremely unstable and is responsible for some of the worst outbreaks of the disease, such as the unparalleled pandemic, or world epidemic. Accurate prediction is difficult because of the complication of the【C8】______. A particular virus may be related to one to which some of the population have【C9】______involved immunity. The extent to which it will spread will depend on factors such as its own strength, or virulence, the ease with which it can be【C10】______and the strength of the opposition it encounters. Scientists, however, have a reliable general picture of the world situation, according to which we may take some precautions.
A)partially I)epidemics
B)guess J)also
C)factors K)attacks
D)equally L)introduced
E)generally M)unstable
F)protection N)infections
G)transmitted 0)predict
H)severe
【C4】
选项
答案
M
解析
此处应填形容词。前句说丙型流感病毒relatively stable,可知甲乙两种病毒是“不稳定的”。本段最后一句中还有原词复现,故选M)unstable。
转载请注明原文地址:https://kaotiyun.com/show/ia27777K
0
大学英语六级
相关试题推荐
A、Healreadyknowshowtoplay.B、Hedoesn’tliketoplaygames.C、Hedoesn’thaveapartner.D、Hedoesn’thaveenoughfreetime
Atranslatormusthaveanexcellent,up-to-dateknowledgeofhissourcelanguages.Hemustfillfacilityinthehandlingofhis
Pretendingtobehappycanactuallymakeyoumore【B1】______—especiallyifyou’reawoman,accordingtoanewstudy.Researc
A、Thelocalgovernments.B、Theirowners’families.C、Advertisements.D、Theaudience.C细节题。在西方国家,政府不给为私人所拥有的大众媒体拨款,可从“They(massm
Onaverage,itissaid,visitors______(仅仅花一半的钱)inadayinLeedsasinLondon.
StudentsWithoutBordersAmericanstudentsabroadarehardlyrare:AreportbytheAmericanCouncilonEducationfoundthat
Bookshaven’tchangedmuchsinceJohannGuttenburginventedtheprintingpressinthefifteenthcentury.Themethodsforproduci
OntheLosingTraditionalCulture1.现在许多传统文化正慢慢消失2.传统文化消失的原因3.我的看法
A、Shesuggeststhemantogotoafartherplacetotrimhishair.B、Sheofferstocuttheman’shairherselfatthepriceof10.
中国的许多酒精饮料(alcoholicdrinks)都是非常独特的,和其他国家的酒不同。外国游客第一次喝的时候可能有点小心翼翼。然而,一旦他们尝了一两种样品,他们就准备好品尝各种可以喝的饮料了,而且他们会发现自己真的很喜欢!几个世纪以来,许多不同种类的酒
随机试题
以下关于三叉神经痛治疗方法中,哪种适合多次复发患者
A.石膏B.信石C.朱砂D.赭石E.雄黄断面显层叠状的药材是()。
案情:某国际租赁有限公司西南分公司达成由租赁公司租赁给某工贸公司两艘大型豪华游轮的意向性协议。随后,分公司将该租赁业务上报租赁公司。租赁公司与工贸公司正式签订了租赁合同,合同盖的章是分公司的章。租赁合同约定,出租方根据工贸公司的要求,出资购买江南造船总厂生
技术方案现金流量表按其评价的角度、范围和方法不同可分为()。
在对贷款项目进行成本审查时,外购投入物的成本应包括由企业负担的()
根据《票据法》的规定,下列选项中,属于支票上绝对应记载事项,但可以由出票人授权补记的事项有()。
苏格拉底认为教育的培养目标是()
根据刑法规定,对于犯受贿罪的,应根据受贿所得________________,依照贪污罪的法定刑处罚。其中______________的从重处罚。
设函数φ(y)具有连续导数,在围绕原点的任意分段光滑简单闭曲线L上,曲线积分的值恒为同一常数。求函数φ(y)的表达式。
OurculturehascausedmostAmericanstoassumenotonlythatourlanguageisuniversalbutthatthegesturesweuseareunderst
最新回复
(
0
)