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、Less than 100 decibels. B、Less than 184 decibels. C、Less than 89 decibels. D、Less than 124 decibels. C细节辨认题。短文中指出,专家认为,即使人们每周只
A、Less than 100 decibels. B、Less than 184 decibels. C、Less than 89 decibels. D、Less than 124 decibels. C细节辨认题。短文中指出,专家认为,即使人们每周只
admin
2012-05-28
62
问题
(30)Millions of youngsters across Europe could suffer permanent hearing loss after five years if they listen to MP3 players at too high a volume for more than five hours a week, European Union (EU) scientists warned Monday. The scientists’ study, requested by the European Commission, attacked the concept of "leisure noise," saying children and teenagers should be protected from increasingly high sound levels. "There has been increasing concern about exposure from the new generation of personal music players which can reproduce sounds at very high volumes without loss of quality," the Commission, the EU’s executive arm, said in a statement. (31)"Risk for hearing damage depends on sound level and exposure time," it said. "More and more young people were exposed to the significant threat that leisure noise posed to hearing." Commission experts estimate that between 50 and 100 million people listen to portable music players on a daily basis. (32) If they listened for only five hours a week at more than 89 decibels (分贝), they would already exceed EU limits for noise allowed in the workplace. But if they listened for longer periods, they risked permanent hearing loss after five years. The scientists calculated the number of people in that risk category at between 5% and 10% of listeners, meaning up to 10 million people in the European Union. Sales of personal music players have soared in EU countries in recent years, particularly of MP3 players. Commission experts estimate unit sales between 184 and 246 million for all portable audio devices just over the last four years, of which MP3 players range between 124 and 165 million.
30. What will happen to people listening to MP3 players at too high a volume for a long time?
31. According to the EU statement, what factors decide the risk for hearing damage?
32. What might be the EU limits for noise allowed in the workplace?
选项
A、Less than 100 decibels.
B、Less than 184 decibels.
C、Less than 89 decibels.
D、Less than 124 decibels.
答案
C
解析
细节辨认题。短文中指出,专家认为,即使人们每周只听5个小时MP3,音量高于89分贝,那就已经超过了欧盟的“工作场合噪音最高限值”。凶此,工作环境的噪音限值应该低于89分贝。
转载请注明原文地址:https://kaotiyun.com/show/m3E7777K
0
大学英语六级
相关试题推荐
It’sabrandnewworld—aworldbuiltaroundbrands.Hard-charging,noise-making,culture-shapingbrandsareeverywhere.They’re
Housesarenormallyfairlystationaryobjects,andthat’snotconsideredasabadthing.But【B1】______neverstandsstill,anda
A、Amiddle-agedwomanwithchroniclungproblems.B、Anelderlymanwhohaschronicheartproblems.C、Anewly-borninfantwhois
A、Bygettingincaughtbyarainstorm.B、Bysleepingwiththeair-conditioningon.C、Bytalkingwiththeinfectedpeople.D、Byh
A、ChangesinLifestylehaveastronginfluenceonbusiness.B、Babygoodsmakemoneyeasily.C、Businessmenareonlyinterested
TheGreenCampusIfyouattendedthisyear’scommencement(毕业典礼)atWilliamsCollegeinwesternMassachusetts,youprobably
A、BecauseIranianleadershasnotvisitedtheUKformanyyears.B、BecausethehostilitybetweenWesterncountriesandIranbega
A、Peoplewithoutexposuretosunlight.B、WealthypeopleinEuropecenturiesago.C、WorkersduringtheIndustrialRevolution.D、W
Wearrivedattheairportontime,______(不料却被告知我们的航班被取消了).
Withtheglobaleconomynowtakingmoreexecutivestofar-awayplaceslikeBeijingandMumbai,jetlagisbecomingabiggerprob
随机试题
某学生做事比较扎实,四平八稳,自制力也很强。该生的气质类型是【】
长期应付款的实质性程序通常包括()
女性,50岁。心悸,心电图示房颤,胸片及PDE检查未见心脏结构异常,查体可见
中暑痉挛的病人可采取的治疗措施有
资料1资料2浙江浙海公司进出口公司(3313910194)在对口合同项下进口蓝湿牛皮,委托浙江嘉宁皮革有限公司(3313920237)加工牛皮沙发革,承运船舶在帕腊纳瓜港装货启运,航经大阪,又泊停釜山港转“HANSASTAVANG
下列关于世界金融市场发展的说法,错误的是()。
人力资源规划的步骤有:①提供人力资源信息;②评估人力资源规划;③组织目标与战略分析;④供需匹配;⑤执行计划与实施监控;⑥人员预测。对其排列顺序正确的是()。
唐朝诗人王维出使到边塞,被眼前的奇异风光所震撼,写下了“大漠孤烟直,长河落日圆”的名句。无独有偶,宋代范仲淹在边塞军中也做过类似描写,其诗句是:_________________,____________________。
年逾花甲的国际机构领导人谈起《论语》来_______,一个外国人竟有如此深厚的中华文化功底,让在场嘉宾不禁暗暗_______。填入画横线部分最恰当的一项是:
简述自我效能感的基本含义及提高措施。
最新回复
(
0
)