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
37
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
A、Hewillbechargedwithaminordrivingviolation.B、Hewillbeputinprisonforfifteendays.C、Hewillbefinedalargeamo
Inrecentdecades,thereisaphenomenonwhichmakesusgivesomeattention,theso-calledSoutheastAsian"tigers"haverivaled
HowSATSWorkTestsareafactoflifethroughoutourschoolcareers,butoneofthemostimportant,and,tosome,thescari
Inrecentdecades,thereisaphenomenonwhichmakesusgivesomeattention,theso-calledSoutheastAsian“tigers”haverivaled
A、Emphasizethegoodqualityofhisproducts.B、Emphasizetherarityofhisproducts.C、Emphasizethediscountofhisproducts.
A、Theirparentscutbacktheloantothem.B、Thewomandoesn’twanttotakeanotherEnglishcourse.C、Theycan’taffordtherent
Beforethe1850stheUnitedStateshadanumberofsmallcolleges,mostofthemdatingfromcolonialdays.Theyweresmall,chur
Ifyoukeepontakingonmoreworkthanyoucando,yourhealthwill________.
Themain______advantageofthefirmistherelativelylowcostofthelabourforcebothforproductionanddesign.
随机试题
消防电梯井底应设排水设施。排水井的最小容量应为:[2008年第65题]
关于腰椎滑脱,下列正确的是
A病区是普通外科。每个病室收治3个患者。小王是刚进临床的护校实习学生,小张是她的带数老师。在见习病房清洁、消毒工作时。护士长发现小王错误的做法是
采用()和资本金注入方式的政府投资项目,由政府进行投资决策,政府要审批项目建议书和可行性研究报告,并对项目的风险承担责任。
旁站是指在关键部位或关键工序施工过程中由( )在现场进行的监督活动。
下列选项中,属于董事会职权的包括()。
课外、校外教育与课堂教学相比更有利于()。
(2013年真题)2010年3月15日,甲与乙达成买卖协议,约定甲向乙出售孤本线装古书一套(该套书分为上中下三卷),价款15万元,双方应于同年8月9日同时履行。2010年5月30日,甲在搬家过程中不慎将该套书的中卷本丢失。甲第二天在报纸上刊登寻物启事,称归
A、Itwillhelptolookattheroleofgovernmentsinculture.B、Itwillcreateanewplatformtoprotectenvironment.C、Itwill
A、Thespiritoffairplay.B、Mutualunderstanding.C、Respecttoeachother.D、Refusaltodrugs.D题目问的是奥运会竞技最重要的品质是什么。新闻中提到,奥委会主席
最新回复
(
0
)