首页
登录
职称英语
A. limited B. distinguish C. unlike D. particular E. triggerF. inefficient G. c
A. limited B. distinguish C. unlike D. particular E. triggerF. inefficient G. c
游客
2024-09-08
37
管理
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. [br] 【C3】
选项
答案
N
解析
空格前的stick to表明,此处填入名词。本句说明的是人类的鼻子能够感受到的和不能闻到的气味,由此可推断此处填入的词要与前面的float through the air相反。surface“表面”符合语义。
转载请注明原文地址:https://tihaiku.com/zcyy/3748896.html
相关试题推荐
A.limitedB.idealC.motivatedD.sourcesE.distributedF.assignedG
A.limitedB.idealC.motivatedD.sourcesE.distributedF.assignedG
A.limitedB.idealC.motivatedD.sourcesE.distributedF.assignedG
A.limitedB.idealC.motivatedD.sourcesE.distributedF.assignedG
Anunlimitedarmsrace______wellincreasethedangerofwar.A、mayB、canC、must
PASSAGETWO[br]Whyismandistinguishedfromotheranimals?Becauseofitsachi
A.limitedB.distinguishC.unlikeD.particularE.triggerF.inefficientG.c
A.limitedB.distinguishC.unlikeD.particularE.triggerF.inefficientG.c
A.limitedB.distinguishC.unlikeD.particularE.triggerF.inefficientG.c
A.limitedB.distinguishC.unlikeD.particularE.triggerF.inefficientG.c
随机试题
NarratorListentopartofalectureinthechemistryclass.Nowget
Whatisthespeaker’sattitudetowardsheavymetalmusic?[br][originaltext]
RealMadridisfirstintheleagueandRealBetisisfifthwileOsasunaisright
Manypeoplewhosepossessionsweredestroyedinnaturaldisasterseventuallycon
[originaltext]CountyfairsareatraditioninNewEnglandtowns.Theyoffer
某公路建设项目,路面为沥青混凝土路面。业主委托一监理单位进行施工阶段的监理,并分
关于X线装置曝光条件控制,错误的是A.四钮控制方式 B.三钮控制方式 C.二
非甾体抗炎药中最常见的共同的不良反应是A.过敏反应 B.泌尿系统反应 C.呼
判断腹泻患儿脱水性质的主要检查是()。A.血清钙 B.血清钾 C.血清钠
女,31岁。反复发作性干咳伴胸闷3年,多于春季发作,无发热、咯血及夜间阵发性呼吸
最新回复
(
0
)