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 researcher says lead in the environment could be a major cause of violence by young people. Doctor Herbert Needleman is a prof
A researcher says lead in the environment could be a major cause of violence by young people. Doctor Herbert Needleman is a prof
admin
2010-11-02
78
问题
A researcher says lead in the environment could be a major cause of violence by young people. Doctor Herbert Needleman is a professor at the University of Pittsburgh School of Medicine in Pennsylvania. He says the【B1】______ of lead in the brain changes the neurons that control actions and that can cause a person to act in antisocial and【B2】______ ways.
Lead is a metal that is【B3】______ dangerous to babies and young children. They can get it into their bodies by breathing or【B4】______ lead dust, or by eating soil or pieces of lead paint. Children with high levels of lead can【B5】______ brain and nervous system damage, learning【B6】______ , slow growth, headaches and hearing loss.
In the 19th century, Doctor Needleman found lower scores on【B7】______ tests even in children who did not have such signs of lead【B8】______ . After that, lead was removed from gasoline and paint in the United States. Yet many homes still have old lead paint. Lead was also used in older water pipes. In fact,【B9】______ .
The newest research shows that even very small amounts of lead in bones can affect brain development. 【B10】______ . In 2008, such tests were done on 190 young people who were in jail and the findings showed that their average levels were higher than normal. And, in 2002,【B11】______ . Yet these levels were still considered safe by the government.
【B9】
选项
答案
officials just announced stronger testing and reporting requirements as from next year for lead in American drinking water
解析
[听音关键] officials, announced, stronger testing and reporting requirements, next year, lead in drinking water
转载请注明原文地址:https://kaotiyun.com/show/BDs7777K
0
大学英语六级
相关试题推荐
AclassactionlawsuithasbeenfiledagainstaprominentTorontodoctorbypatientswhoallegeheinjectedabannedsubstancei
Thetendencynowadaystowanderinwildernessesisdelightfultosee.Thousandsoftired,nerve-shaking,over-civilizedpeoplea
Thetendencynowadaystowanderinwildernessesisdelightfultosee.Thousandsoftired,nerve-shaking,over-civilizedpeoplea
CrossCulturalConflictResolutioninTeamsTeammembersworkinincreasinglydiverseenvironments:intermsofage,gender,
Wearerapidlyneartheendofthiscourseinthehistoryof【B1】______music.Wehavecoveredseveralcenturiesinaveryshort
A、Theperformanceshavebeenrescheduled.B、Studentdiscountticketsareavailable.C、Pricesforallticketshavebeenreduced.
A、Sheisveryvain.B、Shetriesveryhardtohideherrealagefromothers.C、Shehadagoodlifewhenshewasyoungerandstill
OldageintheUnitedStatespresentsmanyproblemsandopportunities.Withtheresultof【S1】______improvedmedi
It’swellthatyoungmenshouldbeginatthebeginningandoccupythemostsubordinatepositions.Manyoftheleadingbusinessme
随机试题
硬膜外血肿的好发部位在
黄明胶属于侧重于滋阴作用的是
根据《建设工程施工合同(示范文本)》规定,工程进度款支付内容包括()。
下列属于资产负债表“流动资产”项目中的是()。
下列各物质能构成缓冲对的是()。
在过往,公众对公共财政预算的冷漠,主要原因在于看不到预算报告,也看不太懂。只有预算公开,才能够真正发挥民间舆论的倒逼作用,推动预算民主的前行。这在一些地方的预算公开案例中,已经得到验证,一旦预算公开,政府官员如坐针毡,迎接如潮般的批评与质疑。因此,预算公开
FTP服务器的域创建完成后,需要添加用户才能被客户端访问。用户包括匿名用户和命名用户。在用户名称文本对话框中输入()命令,系统会自动判定为匿名用户,将不会要求输入密码而直接要求输入主目录。
Publicimage【C1】______tohowacompanyisviewedbyitscustomers,suppliers,andstock-holders,bythefinancialcommunity,by
Whatpositionisadvertised?Howaboutsalary?Theyoffer______salary.
RiversByoriginalusage,ariverisflowingwaterinachannelwithdefinedbanks.Modernusageincludesriversthataremu
最新回复
(
0
)