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
2024-01-20
62
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 facces 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) recognize 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,且能与后面的evidence构成搭配。结合备选项及句意可知,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/3379958.html
相关试题推荐
[originaltext]Somediseasesareinfectious—likecoldsandfluButwhatabou
[originaltext]M:Hi,Susan.Youarelookingverysmarttoday.W:Ialwayslook
[originaltext]M:Hi,Susan.Youarelookingverysmarttoday.W:Ialwayslook
[originaltext]M:Hi,Susan.Youarelookingverysmarttoday.W:Ialwayslook
[originaltext]M:Hi,Susan.Youarelookingverysmarttoday.W:Ialwayslook
Sausagehasbeenapartofhumans’cookingsystemfor15,000years.Nobo
Sausagehasbeenapartofhumans’cookingsystemfor15,000years.Nobo
Sausagehasbeenapartofhumans’cookingsystemfor15,000years.Nobo
Sausagehasbeenapartofhumans’cookingsystemfor15,000years.Nobo
Sausagehasbeenapartofhumans’cookingsystemfor15,000years.Nobo
随机试题
[originaltext]Interviewer(M)JeanChatzky(W)Now,listentoPartOneoftheint
GeneticallyModifiedFoods—FeedtheWorld?[A]Ifyouwanttospa
在贷前调查中,釆取受托支付方式的,借款人在业务申请时可不提供贷款用途证明,但客户
典型的销售与收款循环包括的业务活动有()。A.处理客户订单 B.验收商品并确认
直肠癌根治术能否保留肛门取决于A.肿瘤的大小 B.肿瘤距肛门的距离 C.肿瘤
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
买入注销是指发行人在债券未到期前按()购回并注销债务。A:发行价格B:承销价格
考虑销售单位业务量的情况,三种定价方式下。企业利润分别是()。A.54元、68
乡村振兴开拓投融资渠道,强化乡村振兴投入保障,健全投入保障制度,创新投融资机制,
医生诊断为有病但本人否认属于A、病人角色缺如 B、病人角色冲突 C、病人角色
最新回复
(
0
)