首页
登录
职称英语
Could a plant virus have found a way to infect humans? It has always been as
Could a plant virus have found a way to infect humans? It has always been as
游客
2024-02-04
44
管理
问题
Could a plant virus have found a way to infect humans? It has always been assumed that plant viruses cannot infect animals, and vice versa, but plant viruses are known to be【C1】______in human faeces(粪便).
Now Didier Raoult at the University of the Mediterranean in Marseille, France, and his team think a pepper virus is making people【C2】______, too. They have found RNA from the pepper mild mottle virus in the faeces of 7 percent of the 304 adults they tested. Those with the virus were more【C3】______to report fever, abdominal pain and itching(痒)than those without it, his team found.
Not everyone is convinced, however. Because Raoult looked at many possible【C4】______, he would be expected to find a few that randomly【C5】______more common in virus-positive people, says Robert Garry, a virologist at Tulane University in New Orleans, Louisiana. Moreover, in order to enter a cell and replicate, a virus must bind to a receptor on its surface, and a plant virus would be highly unlikely to【C6】______a receptor on a human cell, says Garry.
One possibility, Raoult says, is that the virus does not infect human cells【C7】______. Instead, the naked viral RNA may alter the【C8】______of the cells through a mechanism similar to RNA interference, in which the presence of certain RNA sequences can【C9】______genes on and off. Raoult’s team is now working to【C10】______more direct evidence that the virus does infect humans.
A)abundant F)function K)situations
B)appear G)gather L)surprisingly
C)available H)likely M)symptoms
D)capacity I)recognise N)tested
E)directly J)sick O)turn [br] 【C10】
选项
答案
G
解析
动词辨析题。空格在不定式符号to的后面,因此应填动词原形,与后面的evidence构成搭配。结合选项及句意可知,gather“收集”符合题意,gather evidence意为“收集证据”。
转载请注明原文地址:https://tihaiku.com/zcyy/3421874.html
相关试题推荐
[originaltext]Problemsarealwaysencounteredinone’slifetobefacedand
[originaltext]Problemsarealwaysencounteredinone’slifetobefacedand
Urbanlifehasalwaysinvolvedabalancingofopportunitiesandrewardsagai
Urbanlifehasalwaysinvolvedabalancingofopportunitiesandrewardsagai
Urbanlifehasalwaysinvolvedabalancingofopportunitiesandrewardsagai
Urbanlifehasalwaysinvolvedabalancingofopportunitiesandrewardsagai
Urbanlifehasalwaysinvolvedabalancingofopportunitiesandrewardsagai
[originaltext]Mathewlivedinabigcity,andalwayshadhishaircutbyth
[originaltext]Mathewlivedinabigcity,andalwayshadhishaircutbyth
Coca-Colahasalwaysbeenmorefocusedonitseconomicbottomlinethanong
随机试题
Amandaiscarefulaboutanythingthattouchesherlips.She【C1】______instr
Thefarmerputupironfencesaroundtheflowergarden______neighbor’ssheeps
[originaltext](33)InyearstocomeourcurrenteramayberememberedasThe
中国茶文化已渗透到中国文化的各个方面,包括诗词、绘画、宗教、医学等领域。Chineseteaculturehaspermeatedintoevery
TherelationshipbetweenlanguagelearningstrategypreferencesandEnglish
[originaltext]M:Whereshallwegoforourholidaythisyear?W:Let’shavea
Today,studentswhowanttolearnEnglishintheUShaveawidechoiceofco
男性,12岁。阵发性剑突下钻顶样疼痛,辗转不安,缓解时无不适,查体:腹软,无压痛
受托物业服务企业为了达到按期收取租金的目的,普遍采取的做法有( )。A.对迟交
尺骨上1/3骨干骨折合并桡骨小头脱位称为 A.Colles骨折B.Sm
最新回复
(
0
)