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
45
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] 【C1】
选项
答案
C
解析
空格所在的从句结构完整,空格后为名词,推断此处填入介词或动词的分词形式。前面提到与动物相比,人类的嗅觉往往被认为是迟钝的。由此推断此处要说的是人类与动物的不同之处。unlike“不像,和……不同”符合语义。
转载请注明原文地址:https://tihaiku.com/zcyy/3123252.html
相关试题推荐
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
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.informationB.lawC.damageD.ensureE.secureF.initiallyG.particularly
A.informationB.lawC.damageD.ensureE.secureF.initiallyG.particularly
随机试题
[originaltext]VisitorstoBritainaresometimessurprisedtolearnthatnew
IturneddownhisinvitationtodinnerasIdidn’twantto______onhim.A、invade
间脑位于端脑和脑干之间,分为5部分,下列不属于间脑的是A、下丘脑 B、中丘脑
施工总承包单位与分包单位依法签订了幕墙工程分包协议,在建设单位组织竣工验收时发现
(2018年真题)下列关于非法集资类犯罪构成的说法中,正确的是( )。 Ⅰ.犯
下列药物不属于吩噻嗪类抗精神病药的是A.氯丙嗪 B.奋乃静 C.三氟拉嗪
下列哪项不是猩红热皮疹的特点A.疹退后有脱皮,无色素沉着 B.皮肤褶折处可见帕
农村土地承包中,承包人承包的土地被依法征用、占用的,承包人有权依法( )。
男性,46岁。1小时前在练习举重突起杠铃时感左侧胸痛,不敢呼吸,随即感气短,呼吸
企业接收股东划入资产,凡合同、协议约定作为资本金(包括资本公积)且在会计上已做实
最新回复
(
0
)