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
考研
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals,【C1】______this i
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals,【C1】______this i
admin
2012-08-24
37
问题
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals,【C1】______this is largely because, 【C2】______animals, we stand upright. This means that our noses are【C3】______to perceiving those smells which float through the air, 【C4】______the majority of smells which stick to surfaces. In fact, 【C5】______, we are extremely sensitive to smells, 【C6】______we do not generally realize it. Our noses are capable of 【C7】______human smells even when these are【C8】______to far below one part in one million.
Strangely, some people find that they can smell one type of flower but not another, 【C9】______others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate【C10】______smell receptors in the nose. These receptors are the cells which sense smells and send messages to the brain. However, it has been found that even people insensitive to a certain smell【C11】______can suddenly become sensitive to it when exposed to it often enough.
The explanation for insensitivity to smell seems to be that the brain finds it【C12】______to keep all smell receptors working all the time but can create new receptors if necessary. This may 【C13】______explain why we are not usually sensitive to our own smells—we simply do not need to be. We are not【C14】______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【C15】______for unfamiliar and emergency signals such as the smell of smoke, which might indicate the danger of fire.
【C7】
选项
A、distinguishing
B、discovering
C、determining
D、detecting
答案
D
解析
句意“我们的鼻子能够……人的气味”。选择谓语动词,主语和宾语提供信息决定答案。选项A.distinguishing区别;B.discovering发现;C.determining决定;D.detecting发现,发觉,感知。我们的鼻子只能是感知(引申为闻到)人的气味。故答案为D。
转载请注明原文地址:https://kaotiyun.com/show/Cbhi777K
0
在职申硕(同等学力)英语
相关试题推荐
Huntershavealmostexterminatedmanyofthelargeranimalswhilefarmersdestroyedmanysmalleranimals.
Thewriterappliedforthejobbecause______Thewriterthoughthewasoverqualifiedforthejobbecause
Comparedwiththeircosmologist(宇宙学家)colleagues,cosmogonists(星源学家)cansoundalittleold-fashioned.EdgarAllenPoeturnedto
Comparedwiththeircosmologist(宇宙学家)colleagues,cosmogonists(星源学家)cansoundalittleold-fashioned.EdgarAllenPoeturnedto
Comparedwiththeircosmologist(宇宙学家)colleagues,cosmogonists(星源学家)cansoundalittleold-fashioned.EdgarAllenPoeturnedto
Comparedwiththeircosmologist(宇宙学家)colleagues,cosmogonists(星源学家)cansoundalittleold-fashioned.EdgarAllenPoeturnedto
Wilmutmaintainsthatcloninganimalshastremendouspotentialforhelpingpeople.ClonedSheep,hesays,couldbeusedaslivin
Wilmutmaintainsthatcloninganimalshastremendouspotentialforhelpingpeople.ClonedSheep,hesays,couldbeusedaslivin
Hewasexhilaratedbythethoughtofhis______trip.
随机试题
教师起主导作用是无条件的。()
反映肾小球滤过率的试验为
卓-艾氏综合征应首选
适用于热敏物料和低熔点物料的粉碎设备是()。
①因为我与他人的关系通过对话,不是特点消失的合金式的“融合”,而是一种“面对面”的关系②对话的目的主要不是说服对方,同化别人,统一思想,而是要在不同思想的碰撞中产生出新的思想,这就是“生成性对话”③多元文化共处最核心的问题是世界不同文化
设f(x)在[a,b]上有定义,M>0且对任意的x,y∈[a,b],有|f(x)-f(y)|≤M|x-y|k.证明:当k>0时,f(x)在[a,b]上连续;
有如下程序:OptionBase1PrivateSubFormClick()Dimarr,SumSum=0alt=Array(1,3,5,7,9,11,13,15,17,19)
(1)Insuchachanging,complexsocietyformerlysimplesolutionstoinformationalneedsbecomecomplicated.Manyoflife’sprobl
下列关于期权多头适用场景和目的的说法,正确的是()。
Asresearcherslearnmoreabouthowchildren’sintelligencedevelops,theyare【S1】______surprisedbythepowerofparents.The
最新回复
(
0
)