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
70
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.
【B10】
选项
答案
A simple blood test can measure lead except that an X-ray process is needed to measure levels in bone
解析
[听音关键] blood test, measure, lead, except, X-ray process,levels in bone
转载请注明原文地址:https://kaotiyun.com/show/IDs7777K
0
大学英语六级
相关试题推荐
A、Rentingacar.B、Makingamodel.C、Fillingtank.D、Signingapaper.A
A、Thepopulationofelderlypeople.B、Nuclearweapon.C、Violenceincrime.D、Livingstandards.C
OnemajordecisionwhichfacestheAmericanstudentreadytobeginhighereducationisthechoiceofattendingalargeuniversit
Oneofthemostfascinatingquestionsabouthumanbehavioriseachpersonisdifferentfromallothers.Theanswertothisquest
TodayAmericanparentsarefindingthemselvesina【B1】______abouthowtodealwithteenagedrinking,aserioussocialproblem.
Directions:Forthispart,youareallowed30minutestowriteapassageinthetitleofMyViewsonTeleeducation.Youshould
A、Hehasneverheardofthem.B、Hedidn’thavetheirnumber.C、Hehasn’thadthetime.D、Hecouldn’taffordthefee.C
Computersandelectroniccommunicationsareallowingmanypeopletousetheirhomesasoffices.Andofficeswillneverdisappear
A、It’srunbythegovernment.B、itappealstomostpeople.C、ItoffersmuchchoiceD、It’samonopoly.D信息明示题。女士不明白为什么自己不需要选择当地电话
随机试题
核能释放的形式有核裂变、核聚变、核衰变等,核能发电属于核裂变。()
阴虚潮热,可出现( )。阳明潮热,可出现( )。
银翘散的功用是麻黄杏仁甘草石膏汤的功用是
下列各项,不属产后发热病因的是
无菌包的有效期一般为()
李某为一境内上市公司员工,每月工资12000元,该公司实行股权激励计划,2012年李某被授予股票期权,授予价4.5元/股,共60000股。按公司股权激励计划的有关规定,李某于2015年3月2日进行第一次行权,行权数量为30000股,该股票当日收盘价12元/
下列自然现象中,说法错误的是:
碳信用又称碳权,指在经过联合国或联合国认可的减排组织认证的条件下,国家或企业以增加能源使用效率、减少污染或减少开发等方式减少碳排放,因此得到可以进入碳交易市场的碳排放计量单位,一个碳信用相当于一吨二氧化碳排放量。某燃煤发电厂去年碳排放额超标,根据上述定义,
新中国实行发展国民经济第一个五年计划的中心环节是()
WhenwilltheCopaAmericainColumbiakick-off?
最新回复
(
0
)