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
2023-10-30
23
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] 【C10】
选项
答案
H
解析
此处需要填入与unfamiliar“不熟悉的;陌生的”并列的修饰signals的词。由后面的indicate the danger of fire可推测,此处填入的是与预示危险有关的词。emergency“紧急情况;不测事件”符合语义,此处emergency signals表示“危急信号”。
转载请注明原文地址:https://tihaiku.com/zcyy/3144283.html
相关试题推荐
The______regardingvitaminCisunlikelytoberesolvedinthenearfuture.A、dev
Biologically,thereisonequalitythatdistinguishesusfromanimals;thea
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]
[A]appears[B]case[C]distinguishes[D]dramatically[E]engaged[F]
[A]associated[B]attached[C]conclusion[D]conduct[E]distinguish
[A]associated[B]attached[C]conclusion[D]conduct[E]distinguish
随机试题
Nowcustomhasnotbeencommonlyregardedasasubjectofanygreatimportan
[originaltext]W:Hi,Iunderstandthatthereareaerobicclassesforstudentsa
Arepasswordspasse(过时的)?It’sstartingtoseemlikeit.Everybodyhatesthe
[originaltext](16)China’simplementationofauniversaltwo-childpolicywill
A.1496Pa B.2851Pa C.3740Pa D.7790Pa
一般用于固定标本的荧光抗体的荧光素与蛋白质结合比率(F/P)值应为A.1.0
能同时抗心肌缺血、抗心律失常和降血压的药物为A.地龙B.苦参C.天麻D.三七E.
下列说法正确的是A.抗代谢药最早用于临床抗肿瘤B.芳香氮芥比脂肪氮芥毒性大C.氮
A. B. C. D.
某住宅小区的业主大会成立后决定解聘原物业服务企业,通过公开招标重新选聘物业服务企
最新回复
(
0
)