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
A. limited B. distinguish C. unlike D. particular E. trigger F. inefficient G. create H. emergency
A. limited B. distinguish C. unlike D. particular E. trigger F. inefficient G. create H. emergency
admin
2017-10-17
48
问题
A. limited B. distinguish C. unlike D. particular E. trigger
F. inefficient G. create H. emergency I. incompetent J. detecting
K. aware L. messages M. unusual N. surfaces O. confined
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 【C3】______. In fact, though, we are extremely sensitive to smells, even if we do not generally realize it. Our noses are capable of 【C4】______ human smells even when these are diluted 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 exposed to it often enough.
The explanation for insensitivity to smell seems to be that the brain finds it 【C7】______ 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 available for unfamiliar and 【C10】______ signals such as the smell of smoke, which might indicate the danger of fire.
【C6】
选项
答案
L
解析
此处需要填入名词,作send的宾语。本句表达的是“这些感受器是由一些能感知气味并把……传递给大脑的细胞组成的。”send messages to意为“传递信息”,符合题意。
转载请注明原文地址:https://kaotiyun.com/show/TjDK777K
0
专业英语四级
相关试题推荐
Whatisthepassagemainlyabout?
Forshopaholics,thepost-【D1】______periodmeansonlyonething:sales.Acrossthecountry,pricesareslashonclothing,【D2】__
Thiswareissuitablefordecorativepurposebutisnotsuitablefor______.
MusicinBritishSchoolsMusicplaysabigpartinBritishschools./Pupilscanlearnaninstrumentatschool./Traditiona
PressingOilfromSeeds【T1】______byusingpressure.Amachine【T2】______isoftenused.Thefirststepinpressingtheoil
A、Aghost.B、Awitch.C、Avampire.D、Amummy.B本题考查细节。由句(10)可知,女士问扮成巫婆如何,毕竟女性需要看起来美一些,因此答案为B。
A、Redesigningpackaging.B、Reducingpackaging.C、Addingpackaging.D、Removingpackaging.B本题考查细节。由句(7)可知,男士提到他们也许可以减少包装,并且宣传自己的环
A、SherelocatesherefromChicago.B、Shehasgotapromotion.C、ShewillrelocatetoAmerica.D、SheisnowinAsia.A本题考查事实。由句(6
Twomenhavedenied_____murderingawomanataremotepicnicspot.
随机试题
关于滤线栅的几何特性,不正确的是
慢性呼吸衰竭病人处于熟睡状态,但可唤醒,并可做简单而正确的交谈,但停止谈话立即入睡,称为
下列关于甲级工程咨询单位资格等级认定标准的表述,错误的是()。
ATA单证册持证人凭单证册进出口货物,可免填进出口货物报关单。()
根据票据法律制度的规定,下列各项中,属于无效票据的有()。
Excuseme,butitistimetohaveyourtemperature
给定材料【材料1】1934年,美国发生了一场人类历史上空前未有的黑色风暴,形成一个东西长2400公里、南北宽1440公里、高3400米的巨大风暴带。风暴所经之处,溪水断流,田地龟裂,庄稼枯萎,牲畜渴死,千万人流离失所。调查发现,引发黑色风暴的直
每100克巧克力中含40~500毫克可可碱,可可碱能刺激平滑肌,还能加速神经传导。但和咖啡因不同的是,可可碱对中枢神经系统几乎没有任何影响。每100克巧克力中含70毫克咖啡因,咖啡因的作用在于提高警觉性,促使人超常发挥,提升观察力,抵抗疲劳,提高脑力活动的
设y=y(χ)由χ2y2+y=1(y>0)确定,求函数y=y(χ)的极值.
TomAlciereMr.Alcierehadnottriedtoconcealthis.HepostedvigorousnotesonInternetdiscussionboards;one,inOctob
最新回复
(
0
)