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
2023-08-25
37
管理
问题
Two groups of scientists demonstrated last week for the first time that the body launches a massive, effective counterattack 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【C1】______stages of the disease. The researchers should be【C2】______— and more than a bit of luck. After all, to study someone at the beginning of a relatively【C3】______phase of the HIV infection, they had to find people who did not yet realise they had contracted the virus. It【C4】______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【C5】______. Such signs, which usually clear up in their own, can easily be【C6】______as a bad flu. In order to identify seven young men suffering from a primary HIV infection, the researchers took this project by【C7】______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【C8】______growth of virus in the men’s blood streams. Each litre 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【C9】______. Once the antibody attack reached full scale in the seven test subjects, the level of HIV in the bloodstream dropped【C10】______. 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.
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] 【C4】
选项
答案
K
解析
主语it指代的that从句的内容,即研究的结果,选项中的动词中只有testifies“证明,表明”在语义和时态上符合,故答案为K)testifies。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/2956681.html
相关试题推荐
[originaltext]Cananimalsbemadetoworkforus?[32]Somescientiststhink
[originaltext]Cananimalsbemadetoworkforus?[32]Somescientiststhink
AteamofGermanscientistshastakenpicturesofanancientfishthatwast
AteamofGermanscientistshastakenpicturesofanancientfishthatwast
AteamofGermanscientistshastakenpicturesofanancientfishthatwast
AteamofGermanscientistshastakenpicturesofanancientfishthatwast
AteamofGermanscientistshastakenpicturesofanancientfishthatwast
AteamofGermanscientistshastakenpicturesofanancientfishthatwast
Economicgrowthreliesonthreegroupsofpeople.Itreliesonpeoplewhoma
Economicgrowthreliesonthreegroupsofpeople.Itreliesonpeoplewhoma
随机试题
Myfaithinhumannaturehasneverbeensogreatasitwaslastweekendafte
Issuesconcerninghumanlearningareamongthecriticaltopicsineducation
ThelibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbo
下列对检测结直肠癌术后复发最有意义的肿瘤相关抗原是A.PSA B.CEA C
根据《商业银行合规风险管理指引》,商业银行应建立对管理人员合规绩效的考核制度。商
货币的派生职能包括()。A:交换媒介 B:储藏手段 C:价值尺度 D:延期
下列哪项是主动脉瓣狭窄典型的三联征A.咳嗽、胸闷、乏力 B.端坐呼吸、腹胀、乏
社会工作者在策划方案时应掌握的基本要求有()。A.目标清晰而且现实 B.
WhatisthepurposeofMs.Walter'slett
在实行金本位制度时,英国货币1英镑的含金量为113.0016格令,美国货币1美元
最新回复
(
0
)