首页
登录
职称英语
[originaltext] [31] The economic costs of noise to society are several. [29
[originaltext] [31] The economic costs of noise to society are several. [29
游客
2023-09-08
12
管理
问题
[31] The economic costs of noise to society are several. [29] 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 all points to acceptable values. Some combination of methods is probably necessary.
[30]/[31]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.
[31] Much research still needs to be done on the economic aspects of noise reduction and noise effects. Al though 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
转载请注明原文地址:https://www.tihaiku.com/zcyy/2995723.html
相关试题推荐
[originaltext]Thenationalweathermapshowsahighpressureareaallalong
[originaltext]Thenationalweathermapshowsahighpressureareaallalong
[originaltext]Howmanymendohousework?Recently,aEuropeancommissiontr
[originaltext]Howmanymendohousework?Recently,aEuropeancommissiontr
[originaltext]W:Hi,ProfessorHiggins.M:Hi,Julia.W:Wouldyoubeabletoh
[originaltext]W:Hi,ProfessorHiggins.M:Hi,Julia.W:Wouldyoubeabletoh
[originaltext]M:Jessica,isthatyou?Ofalltheplacestorunintoeachother
[originaltext]M:Jessica,isthatyou?Ofalltheplacestorunintoeachother
[originaltext]AbrahamLincolnwasborninKentuckyonFebruary12,1809.Wh
[originaltext]W:Hi,Larry,areyouwaitingtoseeProfessorJamison,too?M:Y
随机试题
Hewasafunny-lookingmanwithacheerfulface,good-naturedandagreatta
AlthoughsomeskepticspointstoArcticplacessuchasthehighlatitudesof
急性脓胸常用的排脓方法正确的有()A.开放引流 B.反复胸腔穿刺 C.经
有人说学生犯错要写检讨,老师犯了错绝对不能检讨,这样有失教师的威信。你怎么看?
工程项目的质量要求主要是由()提出的。A、施工方 B、业主方 C、监
患者带下量多色黄,质黏稠,呈泡沫状,有臭气,阴痒,烦躁易怒,口苦咽干,头晕头痛,
A.白色B.淡红色C.淡黄色D.淡绿色E.淡蓝色儿科药品处方的颜色是
共用题干 一般资料:求助者,女性,26岁,公务员。案例介绍:四个月前求助者的父
颊尖顶偏向牙体长轴远中的牙体是A.上颌第一前磨牙 B.上颌第二前磨牙 C.下
运输合同的主要特征表现为()。A:原则上为双务、有偿合同 B:既有诺成性合同
最新回复
(
0
)