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
The controversial Anglo-French supersonic transport plane, the Concorde, had attracted much attention because it is unusually lo
The controversial Anglo-French supersonic transport plane, the Concorde, had attracted much attention because it is unusually lo
admin
2010-01-07
78
问题
The controversial Anglo-French supersonic transport plane, the Concorde, had attracted much attention because it is unusually loud. A late-model jumbo 747, for example, creates 100 or more decibels of sound over an eight-square-kilometer area. The Concorde spreads a 100-decibel-plus blanket of noise over some 140 square kilometers. On takeoff, the Concorde sounds like four F-4 fighter jets taking off at once. Its penetrating, low-frequency rumble makes the Concorde "completely distinctive" from other jets.
What bothers noise experts is that plenty of commonplace machines are just as loud as, or even louder than, the Concorde. A sanitation truck can be noisier, and so can a heavy diesel truck pulling away from a stop sign. One expert who has gone out of his way to dramatize the prevalent offensiveness of the city sound-scale is Dr. Thomas H. Fay, director of speech and hearing at Columbia-Presbyterian Medical Center in New York. Dr. Fay took a sound-meter into a New York City subway and proved that an approaching train can be twice as loud as the Concorde.
Since World War Ⅱ, the number of the high-powered noise-makers, from trucks and motorcycles to air conditioners and sirens has increased almost geometrically. It’ s no wonder that in many areas of the country, especially in the suburbs, the average sound level has doubled in 20 years. Noise experts estimate that city noises are increasing a half-decibel a year. They found that in 1971 the quietest parts of Los Angeles--thought to be a relatively quiet city--were louder than the loudest districts of New York in 1937.
The Concorde is completely distinctive from other jets in that it ______ .
选项
A、flies with a large blanket
B、is as powerful as four F-4 fighter jets
C、produces low-level noise
D、is unusually loud
答案
D
解析
本题为细节判断题,英法联合制造的协和式飞机与众不同的特征就是噪音异常地大。
转载请注明原文地址:https://kaotiyun.com/show/JrPd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Note:AnswereachquestionbychoosingA,B,CorDandmarkitonANSWERSHEET1.Somechoicesmayberequiredmorethanonce.
Accordingtothespeaker,whatareconveniencegoods?
Therearetwobasicwaystoseegrowth:oneasaproduct,theotherasaprocess.Peoplehavegenerallyviewedpersonalgrowtha
Whatnaturalresourcesdidthesouthernparthave?
HostilitytoGypsieshasexistedalmostfromthetimetheyfirstappearedinEuropeinthe14thcentury.TheoriginsoftheGyps
WhendoesthefirsttrainoftheLondonUndergroundleave?
theblood-supply(program)
Millionsofman-hoursarelosttoindustrythroughemployeessufferingbackacheorstraincausedbyoperatingpoorlydesignedma
Whichgame...issoldwell?【P1】______allowsgamerstoselectgameswithequal-caliberopponents?【P2】______isprobablyfright
Wheredidriceoriginate?
随机试题
构成劳动者的最基本的方面是()
对流行性乙型脑炎具有诊断意义的特征性病变是
薄壁细胞中含橙皮苷结晶的药材是表皮细胞中含钟乳体的药材是
中国甲公司与法国乙公司签订了一项贸易合同,合同中有一个条款约定在瑞典斯德哥尔摩商会仲裁院解决双方的合同纠纷,后在合同履行过程中,双方发生争议。法国乙公司申请仲裁,3个月后瑞典斯德哥尔摩商会仲裁院作出裁决,法国乙公司持该裁决到中国法院申请执行。已知中法均为1
按CIFSingapore条件成交出口大宗商品,程租船运输,卖方欲不负担卸货费,应采用()。
下列关于保荐代表人的说法正确的是()。
根据个人独资企业法律制度的规定,下列关于个人独资企业投资人的表述中,正确的是()。
【2014山东事业单位】根据奥苏伯尔对有意义学习的分类,如果儿童听到“鸟”或看到文字的“鸟”,就知道它代表实际的鸟,即使此时并未见到真实的鸟,儿童也能以语言或文字的形式在大脑中形成关于鸟的形象,这属于()。
党的十八大提出要积极培育和践行社会主义核心价值观。社会主义核心价值观倡导()
In1993,therateofmuggingreachedthehighestsince1981______.Whatusuallyleadstostreetrobbery?
最新回复
(
0
)