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
A、It might increase airport capacity. B、It might lower property values. C、It might lead to effective modification of existing je
A、It might increase airport capacity. B、It might lower property values. C、It might lead to effective modification of existing je
admin
2013-06-02
78
问题
The economic costs of noise to society are several. Airports are currently operating at less capacity because of noise regulations which restrict their hours of operation.For instance, at Washington’s National Airport jet traffic is not allowed from 11 pm to 7 am. Other airports restrict the use of certain runways.One estimate is that noise restrictions reduce possible airport use by 20 percent.The profitable cargo trade is especially affected by night restrictions
In the case of airports,jet engines may be modified to reduce their noise level.One estimate is that $5.7 billion would be required to equip all existing jet engines with noise control devices.However, even taking this step will not reduce noise levels at a11 points to acceptable values.some combination of methods is probably necessary.
If all aircraft were made quieter by existing methods, there would be a number of economic benefits.An increase in airport capacity would occur. Property values near airports might rise.Transportation costs to and from airports could be reduced since the airports now could be located closer to population centers.
Much research still needs to be done on the economic aspects of noise reduction and noise effects, Although some of the effects of noise pollution are known,more must be discovered about its effects on health, productivity,property values and the quality of life.Furthermore,the cost of noise pollution to the economy as a whole needs to be investigated.The public must be alerted to the dangers and economic costs of noise pollution so that people may make intelligent choices and exert appropriate pressures.
选项
A、It might increase airport capacity.
B、It might lower property values.
C、It might lead to effective modification of existing jet engines.
D、It might cause more transportation costs to and from airports.
答案
A
解析
What result might noise reduction cause according to the speaker?
转载请注明原文地址:https://kaotiyun.com/show/N767777K
0
大学英语六级
相关试题推荐
A、PeopleknowalmostnothingaboutShakespeare’searlylife.B、ShakespearewasalreadywellknownbeforehewenttoLondon.C、Pe
A、Motivationandteamwork.B、Candospirit.C、Honestyandresponsibility.D、Hard-workingandcooperation.A细节推断题。女士询问男士对领导能力的看法时
A、Theirinterestinphysicalactivities.B、Theirinterestindangerousexperiences.C、Theirinterestinnatureandoutdooractiv
A、Withtheirfather.B、Withtheirmother.C、Withtheirgrandparents.D、Partofthetimewithmother,partwithfather.B选项均为With
Americansthisyearwillswallow15,000tonsofaspirin(阿司匹林),oneofsafestandmosteffectivedrugsinventedbyman.Themost
Americansthisyearwillswallow15,000tonsofaspirin(阿司匹林),oneofsafestandmosteffectivedrugsinventedbyman.Themost
Americansthisyearwillswallow15,000tonsofaspirin(阿司匹林),oneofsafestandmosteffectivedrugsinventedbyman.Themost
Manlivesincommunities.Hissocialexistencerestrictshis【B1】______incertaindirectionsandextendsitinothers.Society【B
随机试题
国有经济需要控制的行业和领域包括
某初产妇,妊娠37周,为羊水过多患者,规律宫缩10小时,破膜后突然剧烈腹痛,少量阴道流血,查血压12.0/8.0kPa,(90/60mmHg),脉搏110次/分,宫底剑突下一横指,有压痛。胎心胎位不清,宫口开2cm,S+1,该例患者最适当的处理是
进度计划一般应包括:总体进度计划;年月日进度计划和()。
200×年×月×目12:05左右,由A建设公司总承包、B监理公司监理、C机电设备安装有限公司分包的某商店电梯安装工程发生一起四级重大安全事故。C公司一工人在吊装扶梯时,因起重葫芦带电而触电身亡。根据穗建筑[2003]68号文,对相关责任单位和责任人处理如下
【背景资料】某施工单位中标承担了某路段高速公路收费系统的施工,该路段设计车速为100km/h,有8处互通立交,其中2处互通立交连接高速公路,其余6处连接地方道路。全线设一个监控、通信、收费分中心,6个收费站,采用封闭式半自动收费方式,并且纳入全省高速公路
根据《契约型私募投资基金合同内容与格式指引》,基金合同当事人应当遵循平等自愿、诚实信用、公平原则订立(),维护投资者合法权益,不得损害国家利益和社会公共利益。
注册会计师需要识别和评估舞弊导致财务报表发生重大错报的风险,针对评估的风险设计和实施适当的应对措施。用以识别由于舞弊导致的集团财务报表重大错报风险所需的信息可能包括()。
如果甲产品价格下降引起乙产品需求曲线向左移动,那么()。
设A为n阶矩阵,且|A|=0,则A().
Decidewhichofthechoicesgivenbelowwouldbestcompletethepassageifinsertedinthecorrespondingblanks.Mostpeople
最新回复
(
0
)