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
外语
Hear, Hear People who have limited hearing can have sounds made louder by hearing aids. But it doesn’t necessarily mean they
Hear, Hear People who have limited hearing can have sounds made louder by hearing aids. But it doesn’t necessarily mean they
admin
2015-01-13
31
问题
选项
答案
Hear, Hear People who have limited hearing can have sounds made louder by hearing aids. But it doesn’t necessarily mean they are clearer. The problem is that ordinary hearing aids amplify all the sounds they pick up by the same amount. They don’t allow for the fact that deafness affects different people in different ways. Very often, people who are deaf can hear some frequencies of sound better than others. The frequency of sound determines pitch. For example, a high-frequency note has a high pitch. A low-frequency note has a low pitch. Deafness usually affects sounds of higher pitch more than sounds of lower pitch, which makes understanding speech, in particular, very difficult. To help get around this problem, researchers have developed hearing aids that can amplify some sounds more than others. Now medical science has developed a number of ways to restore partial hearing to those who have lost or have never been able to use this sense.
解析
转载请注明原文地址:https://jikaoti.com/ti/h5SMFFFM
0
专业英语四级
相关试题推荐
Peoplehavewonderedforalongtimehowtheirpersonalitiesandbehaviorsareformed.It’snoteasytoexplainwhyonepersoni
Clearlyifwearetoparticipateinthesocietyinwhichwelivewemustcommunicatewithotherpeople.Agreatdealofcommunic
Twentyyearsago,atallyoungwomanwithashysmileflubbedherlinesbeforemillionsofpeopleandbecameasuperstar.OnJul
IsitanywonderthatAmericaisalsoacountryofdangerouslyoverweightpeople?AccordingtoarecentstudybytheNationa
IsitanywonderthatAmericaisalsoacountryofdangerouslyoverweightpeople?AccordingtoarecentstudybytheNationa
YellowstoneNationalParkistheoldestnationalparkintheworld.Aboutthreemillionpeoplevisititeachyear.Itsgreatnat
Hesaidhelikedtravelingbytrain,butaftersixhoursstandinginthecorridor,hechangedhis______.
Heisquitesurethatit’s______impossibleforhimtofulfillthetaskwithintwodays.
Mercifully,IwasabletocompleteallIhadtodowithinafewdays.Theunderlinedpartmeans______.
随机试题
下列哪些因素可导致血管内外液体换平衡失调
有人说,对土地的投资是风险最小的投资。这表明了土地的()经济特性。
玻璃在木门窗扇上安装,采用油灰,是用何种油拌制的?[2000—057]
下列关于房地产开发企业预提(应付)费用的企业所得税处理,正确的是()。(2011年)
西北某设计院是一个跨地区、跨行业的大型综合设计院,2007年改制为公司。企业成立后,制订了“2007—2010年的总体发展战略”,不断提高全体人员的专业素质,为客户提供高质量的服务,力争通过三年努力,大力开拓国内外市场,把企业建设成为国内外实际行业中具有一
旅游团中的张某因为不喜欢客房所在楼层与朝向,请求导游员给予调换客房,此时,导游员的正确做法是()。
根据上图,下列说法正确的是( )。2005年粮食产量比2001年增加多少( )
下面命令的输出结果是:DECLAREa(10)?a(0)
请根据题目要求,完成下列操作:某模拟网站的主页地址是:HTTP:/LOCALHOST:6553l/ExamWeb/new2017/index.html,打开此主页,浏览“节目介绍”页面,将页面中的图片保存到考生文件夹下,命名为“JIEMU.jpg”。
WhatIfYouCouldLearnEverythingA)Imagineeverystudenthasatirelesspersonaltutor,anartificiallyintelligentandi
最新回复
(
0
)