首页
登录
职称英语
Although we already know a great deal about influenza, it is difficult for e
Although we already know a great deal about influenza, it is difficult for e
游客
2023-08-26
27
管理
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 [br] 【C6】
选项
答案
L
解析
此处应填动词。分析句子结构可知if后省略了it is,it指代influenza B virus。再根据主语与所填词的关系,如果表主动用现在分词,如果表被动则用过去分词。可选项有G)transmitted和L)introduced,确定它们是主语的被动动作。introduce into意为“传入,引入”,符合文意。transmit后面一般不接into,而接to表示传染的对象,故排除G)transmitted,选L)introduced。
转载请注明原文地址:https://tihaiku.com/zcyy/2958871.html
相关试题推荐
Althoughcliches(陈词滥调)aboutthe"vulnerability"ofwomenintheeconomyhave
Althoughcliches(陈词滥调)aboutthe"vulnerability"ofwomenintheeconomyhave
Everyotherweekitseemsanewstudycomesoutthataddstoouralready-for
Everyotherweekitseemsanewstudycomesoutthataddstoouralready-for
Everyotherweekitseemsanewstudycomesoutthataddstoouralready-for
Highlyproficientmusicianshipishardwon.Althoughit’softenassumedmusi
Highlyproficientmusicianshipishardwon.Althoughit’softenassumedmusi
Everyotherweekitseemsanewstudycomesoutthataddstoouralready-for
Everyotherweekitseemsanewstudycomesoutthataddstoouralready-for
Everyotherweekitseemsanewstudycomesoutthataddstoouralready-for
随机试题
Mostpeoplemanagetoreturnfromtheirholidayswithacoupleofamusingan
______it’squiteagoodplan,butit’sdifficulttocarryitout.A、BythewayB
PartⅡReadingComprehension(SkimmingandScanning)Directions:Inthispart,y
[originaltext]Buyingahouseisalwaysanexpensivebusiness.Itisnotjus
下列关于脚手架立杆的说法中,错误的是()。A.搭接长度不应小于1m B.
急性心肌梗死时,特异性最高的血清标志物是A、LDH B、α-HBDH C、S
在企业质量管理活动中,质量检验部门的权限包括()。 A.评审不合格品的适用性
某地上三层汽车库,每层建筑面积为2600㎡,每层设有80个车位,汽车库内设置
服务项目的特点包括()。A、工程咨询项目具有时效性B、服务项目的目标受整体项目
某银行会计报告提供的相关资料如下:一级资本为100亿元;贷款余额为1200亿元,
最新回复
(
0
)