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
Two groups of scientists demonstrated last week fox the first time that the body launches a massive, effective counter-attack on
Two groups of scientists demonstrated last week fox the first time that the body launches a massive, effective counter-attack on
admin
2013-04-15
53
问题
Two groups of scientists demonstrated last week fox the first time that the body launches a massive, effective counter-attack on the virus soon after infection of HIV begins. If doctors can figure out how to reproduce that early, powerful immune response, they might be able to develop better treatments to (47)______ stages of the disease.
The researchers should be (48)______—and more than a bit of luck. After all, to study someone at the beginning of a relatively (49)______ phase of the HIV infection, they had to find people who did not yet realize they had contracted the virus. It (50)______ that at least a third of HIV-infected people develop a fever or a severe sore throat within a few weeks to months after first (51)______ Such signs, which usually clear up in their own, can easily be (52)______ as a bad flu. In order to identify seven young men suffering from a primary HIV infection, the researchers took this project by (53)______ in hospital emergency rooms and talking to colleagues.
Using advanced laboratory tests that had been developed only in the past few years, both sets of scientists discovered an (54)______ growth of virus in the men’s blood streams. Each liter of the men’s blood contained as many as 10 million infectious viruses.
Within days after the virus burst, the researchers measured a rapid increase in the blood-stream of the number of anti-HIV antibodies(抗体). These Y-shaped bits of protein sought out the virus and targeted it for (55)______. Once the antibody attack reached full scale in the seven test subjects, the level of HIV in the bloodstream dropped (56)______. In the majority of cases, the re-searchers could detect little or no virus two to three weeks later. In other words, the normal immune system can shut down the AIDS virus. Now researchers must figure out exactly how the body puts together this early effective defense—and how the virus manages, years later, to avoid it.
Word Bank:
A. destruction I. abruptly
B. interrupt J. segregation
C. impair K. testifies
D. residing L. lively
E. misdiagnosed M. explosive
F. exemplified N. silent
G. persistent O. exhausting
H. exposure
选项
答案
M
解析
空前的an及空后的growth决定此处应填以元音因素开头的形容词。O. exhausting“令人疲惫不堪的”不能用来说明HIV病毒的生长情况,因此应排除。空后的:Each liter of…as many as…viruses表明病毒的增长速度很快,explosive意为“爆炸性的”,修饰growth时可以表示生长繁殖的速度极快,因此M为本题答案。
转载请注明原文地址:https://kaotiyun.com/show/P9B7777K
0
大学英语六级
相关试题推荐
A、Playingcards.B、Preparingsnacks.C、Studyingwithapartner.D、Learninghowtodesignbridges.A选项均以动名词开头表明,本题可能考查话题或动作。对话中男士
A、Itisoutofworkagain.B、It’sveryold-style.C、Itcoststhewoman$50.D、Itcan’ttellthecorrecttime.A推理判断题。女士抱怨男士的手机很
A、Variousethnicfoods.B、County-stylecooking.C、Deliciousseafood.D、Colddishintheregion.C事实细节题。对话中男士提到作为一个辽阔的国家,美国拥有不同的地
A、Tomorrow.B、Nextmonth.C、Immediately.D、Towardstheendofthemonth.D选项表明,本题考查时间,听音时应留意与时间有关的信息。对话中女士问Whendoyouwanttog
A、Albania.B、Hungary.C、Romania.D、Czechoslovakia.D选项表明,本题考查国家名称,听音时应留意与国家名称有关的信息。对话中女士首先提到男士想去访问的国家,然后问What’sthepriority?由男士
ScientistsWorryMachinesMayOutsmartManArobotthatcanopendoorsandfindelectricaloutletstorechargeitself.Compu
ScientistsWorryMachinesMayOutsmartManArobotthatcanopendoorsandfindelectricaloutletstorechargeitself.Compu
A、Readingmagazinearticles.B、Reviewingbookreports.C、Writingresearchpapers.D、Selectinginformationsources.C选项均以现在分词开头,且
A、Atthepeakinhistory.B、Morethantheaverageofthepasttenseasons.C、Morethantheamountofthisseason.D、Lessthanth
随机试题
关于氨基糖苷类药物的特点和应用,说法正确的是
结合经验并用概念的形式反映事物的特征为
基金业协会的会员不包括()。
我国《选举法》规定,各级人民代表大会的代表候选人的当选条件有()。
王某,男性,33岁,已婚,硕士研究生,单身在外工作(夫妻分居)。自我陈述:担心、紧张、烦躁不安、怀疑自己生病2年,自己就诊。2年前,由于工作应酬陪客人喝酒。可能是喝多的原因,我糊涂地与一个歌厅小姐发生了一次性关系,以后再未往来,也无其他类似经历,但我在
短时记忆的容量很有限,一般只能贮存的信息项目为()。
有研究表明,生物大灭绝在历史上发生过二十几次,大约每2600万年发生一次,似乎具有______。对于物种大灭绝的发生是否真的如此频繁和有规律,还有争议。但即便是最______的估计,也认为至少有5次物种大灭绝是非常明显的。填入画横线部分最恰当的一项
自然人的民事权利能力,是指法律确认的自然人享有民事权利、承担民事义务的资格。自然人的民事权利能力始于
数产生一个0~1之间的单精度随机数,Rnd函数返回小于1但大于或等于0的值。运行下列程序,显示的结果是( )。a=instr(5,"Hello!Beijing.","e")b=sgn(3>2)c=a+bMsgBoxc
Whichofthefollowingistrueaccordingtothespeaker?
最新回复
(
0
)