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
医学
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, but this is lar
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, but this is lar
admin
2013-12-06
66
问题
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, but this is largely because,【C1】______animals, we stand upright. This means that our noses are【C2】______to perceiving those smells which float through the air, missing the majority of smells which stick to surfaces. In fact, though, we are extremely sensitive to smells, even if we do not generally realize it. Our noses are capable of 【C3】______human smells even when these are【C4】______to far below one part in one million.
Strangely, some people find that they can smell one type of flower but not another, whereas others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate【C5】______smell receptors in the nose. These receptors are the cells which sense smells and send【C6】______to the brain. However, it has been found that even people insensitive to a certain smell at first can suddenly become sensitive to it when【C7】______to it often enough.
The explanation for insensitivity to smell seems to be that brain finds it inefficient to keep all smell receptors working all the time but can【C8】______new receptors if necessary. This may also explain why we are not usually sensitive to our own smells we simply do not need to be. We are not【C9】______of the usual smell of our own house but we notice new smells when we visit someone else’s. The brain finds it best to keep smell receptors【C10】______for unfamiliar and emergency signals such as the smell of smoke, which might indicate the danger of fire.
【C10】
选项
A、available
B、reliable
C、identifiable
D、suitable
答案
A
解析
固定搭配:available for指“可用于”,因此正确答案是A。
转载请注明原文地址:https://kaotiyun.com/show/Z5U3777K
本试题收录于:
医学博士外语题库考研分类
0
医学博士外语
考研
相关试题推荐
A、Inahotel.B、Inthehospital.C、Intheprison.D、Attheairport.B女士提到Mr.Smith将在明天bereleased,bereleased原意为“释放”,这里作“出院”解。
Themuscular______canaffectthewaywefeelmentally.
DearDr.Benjamin,CongratulationsonyournominationasUnitedStatesSurgeonGeneral.Basedonyourextraordinarycareera
A、Shedisagreeswiththeman.B、Shecouldn’tagreewiththemanmore.C、It’shardforthemtofulfilltheirplans.D、It’simposs
Thereisanewtypeofsmalladvertisementbecomingincreasinglycommoninnewspapersclassifiedcolumns.Itissometimesplaced
A、Anormalbabyrespondedtothestimuliimpassively.B、Anormalbaby’sreactiontothesoundwasphlegmatic.C、Agroupofnurse
A、Togiveanexampleofabadreactiontopenicillin.B、Toshowhowpenicillinhaschangedovertheyears.C、Toemphasizetheim
A、hespilledhisdrinkontothefloor.B、hehasjustfinishedwipingthefloor.C、hewascaughtinashoweronhiswayhome.D、h
A、Enzymesarewhatmakemanyofthebody’sbiochemicalreactionspossible.B、Enzymesarewhatmakemanyofthebody’schemicalr
A、Meetatthebusstop.B、Finishtheircandybars.C、Getoffthebusatthenextstop.D、Meetinfrontoftherestrooms.A从“Sur
随机试题
密闭取心是利用专门的技术和工具,使取出的岩心不被()侵入和污染的方法。
cosx的一个原函数是()
周某和徐某签订一买卖合同,周、徐二人根据该合同产生的法律关系属于:
双务合同中的抗辩权主要有()。
关于联合体投标,下列说法正确的有()。【2014年真题】
迄今为止,我们所知道的最早正式以教育心理学来命名的一部教育心理学的著作是()完成的。
微分方程y’’-7y’=(x-1)2的待定系数法确定的特解形式(系数的值不必求出)是________
Celebrate.Celebrate.PhysiciansaredelightedwithaFoodandDrugAdministration(FDA)advisorypanel’srecommendationearliert
CanMixofTeachers,ComputersLeadtoPupilSuccess?[A]WhenvisitorstotheCarpeDiemcharterschoolsee175studentswea
A、Itbroadensviews.B、Itbuildsonpriorlearning.C、Ithelpscurediseases.D、Itmakespeoplerelaxed.B
最新回复
(
0
)