首页
登录
职称英语
Two groups of scientists demonstrated last week for the first time that the
Two groups of scientists demonstrated last week for the first time that the
游客
2024-05-09
15
管理
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
[br]
选项
答案
K
解析
此处应填动词在句中作谓语。主语it指代的是上句中的to study…the HIV infection,即对 HIV感染初期的病人的研究,that从句是研究的结果,选项的动词中只有testifies“证明,表明”适合连接这两部分内容,因此K为答案。exemplified意为“举例说明,作为…的例子”,此处不涉及例证关系,且exemplified的时态也与that宾语从句不符,因此排除F。
转载请注明原文地址:https://tihaiku.com/zcyy/3591450.html
相关试题推荐
[originaltext]Scientistshaveobservedthatplantsthemselvesproducemany
[originaltext]Scientistshaveobservedthatplantsthemselvesproducemany
Twogroupsofscientistsdemonstratedlastweekforthefirsttimethatthe
Twogroupsofscientistsdemonstratedlastweekforthefirsttimethatthe
Twogroupsofscientistsdemonstratedlastweekforthefirsttimethatthe
Twogroupsofscientistsdemonstratedlastweekforthefirsttimethatthe
Twogroupsofscientistsdemonstratedlastweekforthefirsttimethatthe
[originaltext]Americanscientistsaredevelopingmapsthatcanidentifyare
[originaltext]Americanscientistsaredevelopingmapsthatcanidentifyare
Atonetime,scientiststhoughtthespacebetweenEarthandSunwasavacuu
随机试题
WhichofthefollowingisNOTmentionedasadifferencebetweentheone-bedroom
A.incomeB.polarizationC.transformationsD.old
电力电缆被判定为危急缺陷的情况,需要停运处理时,应立即申请紧急停运。
2012年第三季度全国100个城市的公共就业服务机构市场中,用人单位通过公共就业
简述现代企业人力资源管理各个历史发展阶段的特点。
治疗虚寒泄泻,宜选用的药物是( )。A.吴茱萸 B.小茴香 C.高良姜
肛门气坠所属的证候是( )。A.脾肾阳虚证 B.肝郁脾虚证 C.脾虚气陷证
国有企业(指单一投资主体的企业)改组设立股份公司,在资产评估和产权界定后,须将净
(2020年真题)根据《疫苗管理法》及相关规定,下列关于疫苗管理要求的说法,错误
肺心病肺动脉高压形成的功能因素是A、慢性缺氧性所致肺血管重建 B、缺氧性肺血管
最新回复
(
0
)