首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals,【56】this is larg
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals,【56】this is larg
admin
2011-01-24
33
问题
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals,【56】this is largely because,【57】animals, we stand upright. This means that our noses are【58】to perceiving those smells which float through the air,【59】the majority of smells which stick to surfaces. In fact【60】, we are extremely sensitive to smells,【61】we do not generally realize it. Our noses are capable of【62】human smells even when these are【63】to far below one part in one million.
Strangely, some people find that they can smell one type of flower but not another,【64】others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate【65】smell receptors in the nose. These receptors are the cells which, sense smells and send【66】to the brain. However, it has been found that even people insensitive to a certain smell【67】can suddenly become sensitive to it when【68】to it often enough. The explanation for insensitivity to smell seems to be that brain finds it【69】to keep all smell receptors working all the time but can【70】new receptors if necessary. This may【71】explain why we are not usually sensitive to our own smells. We simply do not need to be. We are not【72】of the usual smell of our own house but we【73】new smells when we visit someone else’s. The brain finds it best to keep smell receptors【74】for unfamiliar and emergency signals【75】the smell of smoke, which might indicate the danger of fire.
选项
A、subjected
B、left
C、drawn
D、exposed
答案
D
解析
惯用法题。(be)exposed to sth.:接触……
转载请注明原文地址:https://kaotiyun.com/show/jhGC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Hethoughtthatthebadworkingconditionswouldresultinthestrikeoftheworkers.
Whileactingmayruninthefamily,itwasn’tAngelinaJolie’sonlychoicewhenshethoughtaboutherfuturecareer.AlthoughJo
Whileactingmayruninthefamily,itwasn’tAngelinaJolie’sonlychoicewhenshethoughtaboutherfuturecareer.AlthoughJo
Oncesomebodythoughtthatairpollutionaffectedonlytheareaimmediatelyaroundlargecitieswithfactoriesandheavyautomob
Oncesomebodythoughtthatairpollutionaffectedonlytheareaimmediatelyaroundlargecitieswithfactoriesandheavyautomob
Oncesomebodythoughtthatairpollutionaffectedonlytheareaimmediatelyaroundlargecitieswithfactoriesandheavyautomob
Thesofthandwriting______athoughtfulsoulandclevermind.
Howwelldoyouknowyourdog?Theansweris,notnearlyaswellasyourdogknowsyou.Giventherightmotivation,humanscanc
随机试题
18K金表示含量为
第一类精神药品处方笺与第二类精神药品处方笺的重要区别在于
阿尔茨海默病的病理特征以下哪种说法是不正确的
我国民事诉讼法规定,因在中国领域内履行()发生纠纷提起的诉讼,由中国法院管辖
如果计算机字长是8位,那么用原码表示最大有符号定点整数的范围是()。
采用振动压路机进行改性沥青混合料路面压实作业应遵循()的原则。
某国家领导人要在连续6天(分别编号为第一天,第二天,……,第六天)内视察6座工厂F、G、H、J、Q和R,每天只视察一座工厂,每座工厂只被视察一次。视察时间的安排必须符合下列条件:(1)视察F在第一天或第六天(2)视察J的日子比视察Q的日子早
A、Yes,itis.B、It’sperfect.C、Idon’tlikeit.C
TheHistoryofGlobalizationGlobalizationiscommonlybelievednottohavebeenaconcernin【D1】______.In1841,awriterfrom
A、The"familyvalues"hasalreadyvanished.B、Nosinglemodelof"family"doeswhatafamilyshoulddo.C、Familyisanentityth
最新回复
(
0
)