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
2010-11-02
35
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://kaotiyun.com/show/DUs7777K
0
大学英语六级
相关试题推荐
Directions:Forthispart,youareallowed30minutestowriteacomplaintlettertothecustomerservicedepartmentofthecomp
Directions:Forthispart,youareallowedthirtyminutestowriteacompositiononthetopicCouldComputersReplaceTeachersi
Ourknowledgeaboutthehealthoflivingdolphinpopulationsissadlyincomplete.Thegravedangeristhatsomeuniqueandfasci
Friendsplayanimportantpartinourlives,andalthoughwemaymakethefactoffriendshipforgranted,weoftendon’t
AlthoughweAmericansinrecentdecadeshavegrownricher,ourchildrenhavegrownpoorer.Manyfamiliesnolongeradequatelype
A、She’llpayperminuteB、She’llpayamonthlyservicefee.C、She’llpayayearlyservicefee.D、Shewon’thavetopay.B信息明示题。女
Withhisknowledgeandexperience,he______(毫无疑问在不同的场合能胜任这项工作).
A、Hewantstoliveoffcampus.B、Thereareadvantagesanddisadvantagestolivingoffcampus.C、Livingspaceinthedormiscrow
A、Shehasboughtanewone.B、Herbrotherhasjustgivenherone.C、Shehasonlyanoldone.D、Shehasnoneatpresent.D男士说“我想能
Aftertheyear1958,amoremodernSupremeCourtagreedwithJusticeHelen.Inahistoricdecisionin1954itheldthatlawstha
随机试题
要求应答者根据某个标准或某种特性为问题中的事物排列顺序或分成等级的量表是()
Excel把日期和时间视为数字来进行处理。()
我国国家标准GB/T19000一2000质量管理体系标准关于质量管理的定义是在质量方面指挥和控制组织的协调活动。与质量有关的活动,通常包括()等。
为了便于常态混凝土与碾压混凝土在浇筑时能同步上升,应对常态混凝土掺加()。
下列关于普通合伙企业的利润分配、亏损分担方式的说法中,正确的有()。
管理的基本职能包括()。
为了扩大有效需求,保证经济稳定增长,我国宏观调控采取的主要政策措施有()。
8,4,4,6,15,()
低碳也可促进经济低碳经济是指温室气体排放量尽可能低的经济发展方式,尤其要有效控制二氧化碳这一主要温室气体的排放。在全球变暖的大背景下,低碳经济受到越来越多国家的关注。低碳经济以低能耗、低排放、低污染为基础,其实质是提高能源利用效率和创建清洁能
窗体上有名称分别为Text1、Text2的文本框,名称为Command1的命令按钮。运行程序,在Text1中输入"FormList",然后单击命令按钮,执行如下程序:PrivateSubCommand1_Click() Text2.Text=U
最新回复
(
0
)