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
H
解析
空中应填名词。此处是在描述讲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,因此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://jikaoti.com/ti/wcXFFFFM
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、Effectivelegislationsandlawsshouldbeimplemented.B、TheWHOshouldtalkpeopleintogivingupalcohol.C、Thewineonthe
A、Thescientistsknowitisdefinitelygettingsmaller.B、Thescientistsknowitisnearextinct.C、Thescientistsstilldonot
Themainpurposeoftheauthoristointroducetostudentshowtohaveaneffectivestudy.Crammerscanimprovetheirgradesby
Themainpurposeoftheauthoristointroducetostudentshowtohaveaneffectivestudy.itisimpracticaltowriteanorigin
Themainpurposeoftheauthoristointroducetostudentshowtohaveaneffectivestudy.Therearemoregrindsinmilitaryco
随机试题
室外配电线路当()时,应采用电缆。
护肩路基的高度一般不超过()m。
在沉箱重力式码头施工中,沉箱安放就位填充完毕后,后方抛石棱体及倒滤层应从墙后开始抛填,是为了()。
甲股份有限公司(以下简称“甲公司”)的相关交易或事项如下:(1)2×18年1月1日发行了50万份分期付息、到期一次还本的可转换公司债券,每份面值为100元,发行价格总额为5100万元,发行费用为40万元。该债券期限为3年,自2×18年1月1日至2×20年
委托服务管理型企业只有()。
无论是古代的邮驿系统,还是现代的邮政系统,书信从寄信人到收信人手中,都需要经过一个时间、空间的旅行,它的特点是慢。而这种慢又_________了人们的情感体验方式和书信体验方式。正是因为书信的___________,古人的时空感知才变得遥远而漫长,而等待、
普通合伙人除名退伙的情形包括哪些?
《韩非子》载:“上古之世,民食瓜果蚌蛤,腥臊恶臭,民多疾病,有圣人作,钻燧取火,以化腥臊”。我国懂得“钻燧取火"的远古居民相当于()
委托发明协议对专利申请权和专利权没有约定的,该权利属于()。
以下属于网络管理协议的是——。
最新回复
(
0
)