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
2014-01-17
27
问题
According to the passage, intense noise pollution may NOT cause ______.
Unwanted sound, or noises 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 heating 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、40 decibels
B、90 decibels
C、110 decibels
D、160 decibels
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/q4FK777K
0
专业英语四级
相关试题推荐
Everyoneknowsthattaxationisnecessaryinamodernstate:withoutit,it【C1】______notbepossibletopaythesoldiersandpol
MostpeopleknowtwothingsaboutCorsica;Napoleonwasbornhereanditwasthehauntofbandits.Thefirstiscorrect;thesec
YoungerAmericanswillhavetotakeourwordforit;therewasatime,waybackwhenRonaldReaganwaspresident,whenyourcoun
Wherehavemanylargecitiessprungupaccordingtotheconversation?
Whatisthemainpurposeoftheconversation?
In2004,theAuburnHousingAuthoritybecamethefirstauthorityinMaineandoneofthefirstinthecountrytobansmokingin
In2004,theAuburnHousingAuthoritybecamethefirstauthorityinMaineandoneofthefirstinthecountrytobansmokingin
Mostpeoplewhogoonlinehavemainlypositiveexperience.But,(1)______anyendeavor—traveling,cooking,orattendingschool—th
Whilethoseearningmaster’s,doctoral,orprofessionaldegreesstillearnmoreduringtheircareersthanthosewithlesseducat
Thechairmanofthecompanysaidthatnewtechniqueshad______improvedtheirproductionefficiency.
随机试题
行政机关违法行使职权造成公民死亡的,应当支付死亡赔偿金、丧葬费,总额为国家上年度职工年平均工资的()倍。
过食肥甘生冷,损伤脾胃,容易出现胸闷。()
王禹偁的________有意效法白居易的平易诗风,其近体诗、绝句则不乏________的格调。在文的方面,王禹偁既能写古文,又是四六文的高手。王禹偁的文章多有________。
记载、传达会议情况和议定事项用会议记录。
治疗筋脉拘急疼痛的药物多具有
在进行是继续使用旧设备还是购置新设备决策时,如果这两个方案的未来使用年限不同,且只有现金流出,没有适当的现金流入。则合适的评价方法是()。
赵景深在《文心剪影》里说:“他(叶圣陶)的复信措词谦抑,字迹圆润丰满,正显出他那__________而又诚实的心。”正如当年他主编《小说月报》曾精心培育了一大批后来成为新文学史上的著名作家时那样。他那__________的精神和工作态度,给予年轻一代的教育
下面不属于软件需求分析阶段主要工作的是
EveryyearNewZealanderslivinginLondoncanbeseenloadingupKombivansandheadingofftoexperiencethe"classicEuropean
Whatdoesthemanthinkoflivinginthesuburbs?
最新回复
(
0
)