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 for the first time that the body launches a massive, effective counter-attack on
Two groups of scientists demonstrated last week for the first time that the body launches a massive, effective counter-attack on
admin
2013-06-02
34
问题
Two groups of scientists demonstrated last week for 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 bloodstream 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 researchers 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
N
解析
此处应填形容词为副词relatively所修饰。由空后的people who did not yet realize they had contracted the virus可知,HIV感染的初期是不容易被发现的,所以此处应填silent。relatively silent phase是指相对不活跃的潜伏期。
转载请注明原文地址:https://kaotiyun.com/show/g5B7777K
0
大学英语六级
相关试题推荐
Scientistshavediscoveredstrandsofgeneticcodelinkedtoshortsight,themostcommoneyedisorderintheworld.Thefinding
Scientistshavediscoveredstrandsofgeneticcodelinkedtoshortsight,themostcommoneyedisorderintheworld.Thefinding
A、Thestudentsalwayssleepinhisclass.B、Heispopularamongthestudents.C、Heprefersdiscussiongroupsinhisclass.D、He
A、StudentsfromAmerica.B、StudentsfromEngland.C、StudentsfromAustralia.D、StudentsfromJapan.AOfthefourgroupsofstude
A、Thescientistsknowitisdefinitelygettingsmaller.B、Thescientistsknowitisnearextinct.C、Thescientistsstilldonot
A、Itmightincreaseairportcapacity.B、Itmightlowerpropertyvalues.C、Itmightleadtoeffectivemodificationofexistingje
Themainpurposeoftheauthoristointroducetostudentshowtohaveaneffectivestudy.Socialstudierslearnbetterby____
Themainpurposeoftheauthoristointroducetostudentshowtohaveaneffectivestudy.itisimpracticaltowriteanorigin
随机试题
甲状腺危象好发于甲状腺手术后多少小时
简述政治经济制度对教育的影响。
实质性程序的类型包括()
劳动强度指数为18时,按我国体力劳动强度分级标准其劳动强度级别为
火灾自动报警系统对火灾声光警报器进行调试,逐一将火灾声光警报器与火灾报警控制器相连,接通电源。操作火灾报警控制器使火灾声光警报器启动,火灾声光警报器的光信号在100~5001x环境光线下()m处应清晰可见。
一多层民用建筑,耐火等级为一级,该建筑防火分区最大允许建筑面积是()m2。
报关单位收到海关发送的“接受申报”的报文和“现场交单”或“放行交单”通知,表示电子申报成功。()
存款人尚未清偿其开户银行债务的,不得申请撤销该银行结算账户。()
公安工作的一项重要任务就是办案。通过办案( )。
下列有关股权自由现金流量表述正确的有()。
最新回复
(
0
)