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
Could a plant virus have found a way to infect humans? It has always been assumed that plant viruses cannot infect animals, and
Could a plant virus have found a way to infect humans? It has always been assumed that plant viruses cannot infect animals, and
admin
2015-07-31
30
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
【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://kaotiyun.com/show/acl7777K
0
大学英语四级
相关试题推荐
A、SophialikesDavidverymuch.B、Sophiaalwayssurpriseseveryone.C、DavidlikesfollowingSophia.D、DavidoftenbreaksSophia’
A、Thecentralgovernmentcannotbetoopowerful.B、Biggerstateshavemorepowerthansmallerones.C、Thepowersarefairlydivi
WaystoLiveLongerA)WehavetheNHS(theNationalHealthService)andmuchoftherestoftheworldenviesusforit,buthowlo
WaystoLiveLongerA)WehavetheNHS(theNationalHealthService)andmuchoftherestoftheworldenviesusforit,buthowlo
Urbanlifehasalwaysinvolvedabalancingofopportunitiesandrewardsagainstdangersandstress;its【C1】______forceis,inth
Boilerroomsareoftendirtyandsteamy,butthisoneispristine(干净的)andcool.FoxPointisaspankingnew47-unit【C1】______bui
Boilerroomsareoftendirtyandsteamy,butthisoneispristine(干净的)andcool.FoxPointisaspankingnew47-unit【C1】______bui
Boilerroomsareoftendirtyandsteamy,butthisoneispristine(干净的)andcool.FoxPointisaspankingnew47-unit【C1】______bui
随机试题
0.1%苯扎溴铵溶液(新洁尔灭)浸泡消毒手术器械时,为防止生锈应添加的药物是()
环境污染物对人体的毒作用,主要取决于人体对污染物的
A.氯胺酮B.芬太尼C.麦角胺D.地西泮E.地巴唑根据《麻醉药品和精神药品品种目录(2013年版)》,属于第二类精神药品品种的是
会计监督职能是指会计在其核算过程中对经济活动的()所进行的审查。
“We do not know what is the matter with the quality.Please clarify.”最确切的翻译是( )
重庆有一处著名园林,曾是一座私家园林,始建于清末宣统年问。园林主人精心设计的“椿树绳桥”,既有江南园林特色,又有成为园中别具一格的景物,这座园林是()。
上海境内全为坦荡低平的平原,平均海拔高度为()米左右。
()提出了以“法”为中心,“法”“术”“势”相结合的法治思想。
根据下列材料设计教学片段。(1)《普通高中历史课程标准(实验)》:知道古代中国农业耕作方式和土地制度,了解古代中国农业经济的基本特点。(2)课文摘录:西周时期,农作物种类更加丰富,有粟、稻、黍、稷、麦、桑、麻等,后世的主要农作
有两个关系R和T如下。则由关系R得到关系T的操作是
最新回复
(
0
)