首页
登录
职称英语
A. limited B. distinguish C. unlike D. particular
A. limited B. distinguish C. unlike D. particular
游客
2023-10-23
40
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] 【C9】
选项
答案
K
解析
空格前的are表明此处需要填入动词的过去分词形式或形容词。后面提到对于new sinews我们一定能发觉 (nonce),由表转折的but可推知,空格所在的分句是要表达“对于usual smell我们一定是没感觉”。be not aware of“没有察觉到的”符合题意。
转载请注明原文地址:https://tihaiku.com/zcyy/3123260.html
相关试题推荐
Butwedoneedalittlefreedomfromourleashes______.A、inparticularB、atall
Thefundingforpostgraduateresearchislimited.Somepeoplethinkthatfin
A.particularlyB.correlatedC.averageD.peaceE.singleF.callsG.ordinary
A.particularlyB.correlatedC.averageD.peaceE.singleF.callsG.ordinary
A.particularlyB.correlatedC.averageD.peaceE.singleF.callsG.ordinary
A.particularlyB.correlatedC.averageD.peaceE.singleF.callsG.ordinary
A.particularlyB.correlatedC.averageD.peaceE.singleF.callsG.ordinary
Ifone____,hewillbeveryparticularaboutothers’clothingandappearance.A、h
A.informationB.lawC.damageD.ensureE.secureF.initiallyG.particularly
A.informationB.lawC.damageD.ensureE.secureF.initiallyG.particularly
随机试题
Whichvowelisdifferentfromtheothersaccordingtothecharacteristicsofvow
Whenmanypeoplediscussschools"goodorbad",whataretheytalkingabout?[or
Becauseshegottiredof______allday.[originaltext]WhydidCindychangeher
Bufomarinustoads,fiercepredatorsthatwilleatfrogslizards,andevensmall
[originaltext]AlthoughHenryFord’snameiscloselyassociatedwiththecon
Everybodysleeps,butwhatpeoplestayuplatetocatch—orwakeupearlyin
胸部CT增强扫描不用于以下病变的诊断A.肺内结节性病变的区别 B.胸水性质的判
喘证的基本病机是A.肺气上逆,宣降失职 B.邪犯于肺,肺气上逆 C.卫表不和
水泵接合器接口的位置应方便操作,安装在便于消防车接近的人行道或非机动车行驶地段,
男性,3岁半,诉发音不清求治,口腔检查:舌不能自由前伸,伸舌时舌尖部呈"W"形,
最新回复
(
0
)