首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
财务会计
共用题干 Ear BreakthroughNew research publi
共用题干 Ear BreakthroughNew research publi
昕玥
2019-12-17
22
问题
共用题干Ear Breakthrough
New research published in the journal Current Biology has added significantly to understand-ing of how the ear works,giving hope to millions of deaf and hard of hearing people.
The latest research,conducted by Dr.
T. Albet,a Deafness Research UK research fel-low at the UCL Ear Institute,together with scientists at the University of Cologne,shows that fruit flies have ears which mechanically amplify sound signals in a remarkably similar way to the senso- ry(感觉的)cells found in the inner ear of vertebrates(脊椎动物)including humans. The finding means that the wealth of genetic techniques already available to study the fruit fly can now be used to target how the ear works.
Dr. Albert says.“The biophysical parallels between the ways both fruit flies and humans convert sound into nerve signals are truly amazing.We may be allowed to hope that these mecha- nistic(机械学的)similarities extend further down to the genes and molecules that bring about hearing.But even if it finally should turn out that hearing in fruit flies relies on different mole-cules than does hearing in humans,the little fruit fly can help us find answers to some key ques-tions of hearing research and -what is sometimes even more important -will surely help us ask the right questions.”
The work is welcomed by Deafness Research UK,the country's only medical research charity for deaf people.Vivienne Michael,chief executive of Deafness Research UK.says,“This is an important advance that paves the way toward a clear understanding of the genetics of deafness.The charity will continue to support culling-edge(尖端的)research through its Fellowship programme at the UCI.Ear institute and at other top research centres in the UK to achieve our goal of secu-ring audial improvements in the prevention,diagnosis and treatment of all forms of hearing impair-ment.”
There are nine million deaf and hard of hearing people in the UK and in most cases deafness results from loss of sensory cells in the inner ear known as“hair” cells.The cells can be damaged and lost through ageing,noise,genetic defects and certain drugs and,because the cells don't re- generate,the result is progressive— and irreversible—hearing loss .Damage to these cells can al-so lead to tinnitus(耳鸣),which affects around five million people in the UK.
选项
Fruit files and humans share similarities in how they_______.A:.ask and answer questionsB: pass on their genesC: reproduceD: convert sound into nerve signals
答案
D
解析
根据常识可知,如果有人听力有问题,那么他一定无法正常使用自己的听力。故本题选A。 根据第二段的“The finding means that… can now be used to target how the ear works.”可知,大量经费用于研究果蝇的听力,而且已经有可应用的成果。故选B。 由第三段中的“The biophysical parallels between the ways both fruit flies and humans convert sound into nerve signals are truly amazing.”可知,果蝇和人类转化声音为神经信号的能力的相似性是十分令人吃惊的。故本题选D。 倒数第二段第一句中的“The work is welcomed by Deafness Research UK , the country's only medical research charity for deaf people.Vivienne Michael,chief executive of Deafness Research UK.”可知,Vivienne很感激整个研究成果,这一研究成果即上文中 Albert博士的研究成果。因此答案为D。 由最后一段中的“The cells can be images and lost through… the result is progressive—and irreversible—hearing loss.”可知,听力神经细胞是不能增殖的,因此,损伤就是不可逆转的。故答案为C。
转载请注明原文地址:https://ti.zuoweng.com/ti/jjOfKKKQ
相关试题推荐
A题干由四种字母组成,其组合形式为ABCDDCA,只有A项符合。
B题干图形均代表一项运动,B符合。
C大小形状相同的图形看作一类图形,题干图形都由两类图形组成,选项中只有C符合。
C题干图形中的人都只使用了1只手,选项中只有C项符合。
A题干图形中都含有4个封闭区域,选项中只有A项符合。
A题干符号规律为ABCABD,只有A项符合此规律。故答案选A。
C题干符号规律为ABCDABCEF,只有C项符合此规律。故答案选C。
(―)每道题在上边的题干中给出一套图形,其中有五个图,这五个图呈现一定的规律性。
C题干符号规律是ABCDEBA,只有C项符合。
每道题在左边的题干中给出一套图形,其中有五个图,这五个图呈现一定的规律性。在右
随机试题
男,37岁。右舌缘1/3溃疡2周余,扩展较快,伴有疼痈,近1周出现右下颌下淋巴结
下列有关科学发展观中的以人为本的说法,正确的是()。
在建的一栋办公楼施工至主体2层时倒塌,死亡11人,则该起质量事故属于()。
治疗支原体肺炎的首选抗生素是()
定租金时,一般应首先根据()确定一个基础租金。
饰面板工程施工的环境温度应满足要求,采用有机胶粘剂粘贴时,不宜低于( )。
商品的社会属性是指( )A.使用价值B.价值C.交换价值D.抽象劳动
港航工程施工由承包商提供的担保主要类型有( )。A.投标担保B.履约担保C.工程预付款担保D.工程返工担保E.农民工工资担保
如果一个进度计划系统由总进度计划、项目子系统进度计划、项目子系统的单项工程进度计划组成。该进度计划系统是由()的计划组成的计划系统。A.不同功能B.不同项目
以下关于资产流动性的说法正确的是( )。A.资产流动性是商业银行能以较低的成本随时获得需要的资金B.资产的变现能力越强,所付成本越低,则流动性越强C.