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
11
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/3123261.html
相关试题推荐
[originaltext]W:CanIhelpyou?Areyoulookingforsomethinginparticular?M
[originaltext]W:CanIhelpyou?Areyoulookingforsomethinginparticular?M
A.approachingB.distinguishC.patternsD.collectE.graspF.managed
A.approachingB.distinguishC.patternsD.collectE.graspF.managed
A.approachingB.distinguishC.patternsD.collectE.graspF.managed
A.approachingB.distinguishC.patternsD.collectE.graspF.managed
A.approachingB.distinguishC.patternsD.collectE.graspF.managed
A.approachingB.distinguishC.patternsD.collectE.graspF.managed
A.approachingB.distinguishC.patternsD.collectE.graspF.managed
A.approachingB.distinguishC.patternsD.collectE.graspF.managed
随机试题
AirPollutionandAcidRainTheincreasingvarietyandp
假定某企业根据2014年5月员工的出勤率、岗位、应扣款得出的工资表如下:
下列哪味药物专理脾肺气滞A.香附 B.木香 C.橘皮 D.乌药 E.檀香
下列方剂中,运用了“金水相生”方法的是A:百合固金汤B:参苓白术散C:六味地
免疫电镜技术中包埋后免疫染色最常用于A.酶标记抗原免疫组化技术B.非标记抗体免疫
允许凭执业医师处方零售的药品有A.麻醉药品片剂 B.第一类精神药品 C.第二
按照劳动争议主体的不同,可以把劳动争议划分为()。A:权利争议 B:利益争议
税法的正式渊源包括( )。A.税收法律 B.税收法规 C.国际税收条约
开工预付款支付的条件有:一是承包人和发包人已签订了施工合同,二是()。A.承包
下列哪项不是卵巢肿瘤的手术指征 A.卵巢瘤样病变 B.卵巢囊肿直径>5cm
最新回复
(
0
)