首页
登录
职称英语
Two groups of scientists demonstrated last week fox the first time that the
Two groups of scientists demonstrated last week fox the first time that the
游客
2023-09-01
40
管理
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
[br]
选项
答案
H
解析
空中应填名词。此处是在描述HIV感染初期的症状表现。exposure有“感染”之意,与该语境相符,即病人初次感染:HIV后会在几周或几个月内出现发烧症状或严重的嗓子疼,H为答案。选项中的其他名词A. destruction“破坏,毁灭”和J. segregation”“隔离”均与a fever or a severe sore throat没有关联.
转载请注明原文地址:https://tihaiku.com/zcyy/2977060.html
相关试题推荐
Scientistswillhaveto_______________________________(提出增加世界粮食供应量的新方法).comeup
[originaltext]Asisknowntoall,scientistsandphilosophershadstudiedt
[originaltext]Asisknowntoall,scientistsandphilosophershadstudiedt
Someday,perhaps,scientistswill______(能够准确地预报地震).beabletoexactlypredictth
[originaltext]Withthedevelopmentofscience,scientistshavediscoveredm
[originaltext]Withthedevelopmentofscience,scientistshavediscoveredm
It’sa(47)______oftenrequestedinlonelyheartsadsandscientistshaven
It’sa(47)______oftenrequestedinlonelyheartsadsandscientistshaven
It’sa(47)______oftenrequestedinlonelyheartsadsandscientistshaven
[originaltext]Foryearsscientistshavebeenworriedabouttheeffectsof
随机试题
Thebookgivesabrief______ofthecourseofhisresearchuptillnow.A、outline
Educationhasbeenahigh-returnaswellasahigh-riskinvestmentfortheindiv
设备监理工程师所从事的设备工程监理工作实质上属于()的范畴。A.施工管理
关于资产评估档案,下列说法正确的有()。A.资产评估专业人员通常应当在资产评估
香港金管局规定的法定流动资产比率为()。A.10% B.15% C.25%
A.含毒性药物的散剂B.眼用散剂C.含液体药物的散剂D.含低共熔混合物的散剂E.
国内项目评价中,国民经济评价使用( )。 A.现行价格 B.预测
适合使用外汇期权作为风险管理手段的情形有( )。A.国内某软件公司在欧洲竞标,
A.对半卡环 B.圈形卡环 C.三臂卡环 D.回力卡环 E.联合卡环前后
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
最新回复
(
0
)