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
财经
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals,【C11】______this
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals,【C11】______this
admin
2015-02-08
84
问题
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals,【C11】______this is largely, because, unlike animals, we stand upright. This means that our noses are【C12】______to perceiving those smells which float through the air, missing the majority of smells which stick to surfaces. In fact,【C13】______, we are extremely sensitive to smells, even if we do not generally realize it. Our noses are capable of【C14】______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,【C15】______others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate particular smell receptors in the nose. These receptors are the cells which sense smells and send【C16】______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【C17】______to it often enough.
The explanation for insensitivity to smell seems to be that the brain finds it inefficient to keep all smell receptors working all the time but can【C18】______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【C19】______of the usual smell of our own house, but we notice new smells when we visit someone else’ s. The brain finds it’ s best to keep smell receptors【C20】______for unfamiliar and emergency signals such as the smell of smoke, which might indicate the danger of fire.
【C17】
选项
A、subjected
B、left
C、drawn
D、exposed
答案
D
解析
空格所在部分省略了主语people和be动词,讲的是让人对某种气味由“不敏感”变得“敏感”的条件。由此可推知,人只有经常闻到或者接触到这种气味,才会对它变得敏感,be exposed to意为“暴露于”,符合文意,即“如果经常接触这种气味”。故正确答案为D。
转载请注明原文地址:https://kaotiyun.com/show/l3gc777K
本试题收录于:
英语题库银行系统招聘考试分类
0
英语
银行系统招聘考试
相关试题推荐
Don’twalkanyfarther,Therearewildanimalsdeeolyintheforest.
一Doctor,itseems_________youliketoworkwithanimals.一Yes,Ithinkanimalsshould_________asourfriends.
DianaJacobsthoughtherfamilyhadaworkableplantopayforcollegeforher21-year-oldtwinsons:acombinationofsavings,
DianaJacobsthoughtherfamilyhadaworkableplantopayforcollegeforher21-year-oldtwinsons:acombinationofsavings,
Youthoughttheycouldhavecompletedtheproject,______?
Noneofusexpectedthechairmanto______attheparty.Wethoughthewasstillinhospital.
Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensitivesmellerscomparedwithanimals,【C11】______this
Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensitivesmellerscomparedwithanimals,【C11】______this
随机试题
颌骨牵张成骨技术的间歇期一般为
A.因人制宜B.因时制宜C.因地制宜D.治未病E.扶助正气治病时考虑年龄属于
跨国公司的三要素包括()。
金融机构不得与身份不明的客户进行交易或者为客户开立匿名账户、假名账户。()
反映市场绩效的指标不包括()。
20世纪30年代,我国幼教界有“南陈北张”之称,即指南京有陈鹤琴,北京有()。
某企业计提生产车间管理人员失业保险费180000元。下列各项中,关于该事项的会计处理正确的是()。
简述家园合作的意义。
始于2007年,全面爆发于2008年的全球金融大危机,至今仍未见底。危机____着人类的经济学智慧。这是一种怎样的危机?为什么人类总是在周期性的经济危机怪圈里痛苦地轮同?人类靠什么向危机宣战?靠什么跳初危机包围圈?靠什么避免危机?这是一连串的经济学难题,也
我国古代第一个由南方统一北方的全国性封建政权是()。
最新回复
(
0
)