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
According to the passage, intense noise pollution may NOT cause
According to the passage, intense noise pollution may NOT cause
admin
2010-05-25
49
问题
According to the passage, intense noise pollution may NOT cause
Unwanted sound or noise produced by airplanes, traffic, or industrial machinery, is considered a form of pollution. Noise pollution is at its worst in densely polluted areas. It can cause hearing loss, stress, high blood pressure, sleep loss, distraction, and lost productivity.
Most humans can hear sounds between 20 and 20,000 hertz, while dogs can hear high-pitched sounds up to 50,000 hertz. While high frequency sounds tend to be more hazardous and more annoying to hearing than low frequency sounds, most noise pollution damage is related to the intensity of the sound. Measured in decibels, noise intensity can range from zero, the quietest sound the human ear can detect, to over 160 decibels. Conversation takes place at around 40 decibels, a subway train is about 80 decibels, and a rock concert is from 80 to 100 decibels. The intensity of a nearby jet taking off is about 100 decibels. The threshold for pain, tissue damage and potential hearing loss in humans is 120 decibels. Long lasting, high intensity sounds are the most damaging to hearing and produce the most stress in humans.
Solutions to noise pollution include adding insulation and sound proofing to doors, walls and ceilings; using ear protection, particularly in industrial working areas; planting vegetation to absorb and screen out noise pollution; and zoning urban areas to maintain a separation between residential areas and zones of excessive noise.
选项
A、hearing loss.
B、high blood pressure.
C、lost productivity.
D、poor appetite.
答案
D
解析
转载请注明原文地址:https://jikaoti.com/ti/5bqMFFFM
0
专业英语四级
相关试题推荐
Cultureisthesumtotalofallthetraditions,customs,beliefs,andwaysoflifeofagivengroupofpeople.Inthissense,ev
Africanelephantshavebeenslaughteredatalarmingrateoverthepastdecade,largelybecausetheyaretheprimarysourceofth
Somepeoplethinkthatatranslation,orword-for-wordtranslation,iseasierthanafreetranslation.
ThepeopleatthepartywereworriedaboutSusanbecausenoonewasaware______shehadgone.
Deficit,Debt,andEntitlementsWellit’sthegroupofpeoplebornbetween1961and1981.Itseemsthatwehavecometobe
Basedonthepassage,howmanyofonehundredandtwentyAmericancouplesofthebeatgenerationpracticedcohabitation?
Basedonthepassage,howmanyofonehundredandtwentyAmericancouplesofthebeatgenerationpracticedcohabitation?
Thereareseveralwaysyoucanfindoutaboutthecountriesandplacesyouwishtovisit.Readingtravelbooksisoneofthem.
WhatdoesanadvertisementsayaboutEnglishlearning?
ESLandEFLAlthoughthemethodsintroducedbyusingtheexampleoflearningEnglishasasecondorforeignlanguage,Ihave
随机试题
A.颈静脉怒张B.下肢水肿C.贫血貌D.腹部移动性浊音心源性腹水与肝源性腹水的主要鉴别点是
翼外肌在髁突上的附着处为
患者,女,60岁。平素经常头晕目眩,今日情绪激动后,突然半身不遂,神志昏迷,失语,小便失禁,舌红苔黄腻,脉弦数。应首先考虑的是
孕36周初产妇,因重度妊高征住院治疗5天,症状不见改善,血压140/120mmHg,尿蛋白(+++),尿蛋白含量34mg/24h,突然阴道流水,羊水Ⅲ度粪染,胎心115次/分.采取的措施哪项不恰当
A.强硬舌B.痿软舌C.颤动舌D.吐弄舌E.短缩舌气血虚极,阴液亏损,筋脉失养其舌态为()。
A.自主选择权B.公平交易权C.安全保障权D.真情知悉权乙药品零售企业出售茯苓时未按消费者的要求提供产地信息,该行为侵犯了消费者的()。
知识的本质是发现,只有在自由的环境中,人们才会有更多发现的可能。因此,知识分子在本质上也不是熟知现成结论的人,知识分子要发掘未知事物,提示假相背后的真相。教育的目的,就是培养学生发现和创造知识的能力,教育如果停留在向学生强行灌输标准答案和“真理”上,根本就
42894
二阶常系数非齐次线性微分方程y″-2y′-3y=(2x+1)e-x的特解形式为().
SupposeyouareapplyingforaPhDprogramataUKuniversity.ProfessorGothhaswrittenarecommendationletterforyouatyou
最新回复
(
0
)