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
63
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.
【B1】
选项
答案
presence
解析
转载请注明原文地址:https://kaotiyun.com/show/QDs7777K
0
大学英语六级
相关试题推荐
Thetendencynowadaystowanderinwildernessesisdelightfultosee.Thousandsoftired,nerve-shaking,over-civilizedpeoplea
A、Driveonthroughthenight.B、Checkoutofthemotel.C、Canceltheirmotelreservation.D、Stopdrivingfortherestoftheday
A、Englishhusbandsusuallydoalotofhousework.B、Englishhusbandsusuallydolittlehousework.C、Englishhusbandsaregoodat
Mostpeople’sjobsarelikelytobeeffectedbycomputers【S1】______inonewayorother.Teachers,forexample,canuse
Moreandmore,theoperationsofourbusinesses,governments,and【B1】______institutionsarecontrolledbyinformationthatexis
WhyMenandWomenCan’tCommunicate—byDeborahTannen
WhyMenandWomenCan’tCommunicate—byDeborahTannen
Computersandelectroniccommunicationsareallowingmanypeopletousetheirhomesasoffices.Andofficeswillneverdisappear
A、Haveagreatersenseofduty.B、Cangethigherpay.C、Canavoidworkinghard.D、Canavoidbusytraffic.D信息明示题。先读选项再结合文中第二段列出的
Americanhighereducationstandsonthebrinkofchaos.Neverhavesomanyspentsolonglearningsolittle.Thepresentcrisis
随机试题
A、肋骨骨髓炎基础上发生肋骨骨折B、暴力作用点之外发生叻骨骨折C、暴力作用点上发生肋骨骨折D、2根以内的肋骨骨折E、3根以上的肋骨骨折多发性肋骨骨折考虑()
I can just ( ) a glance at the rest.
某家电生产厂商采用德尔菲法,选定5名专家对该企业研发的新产品的市场需求量进行预测,最后一轮函询的数据见表。根据以上资料,回答下列问题:如果采用中位数法进行预测,该新产品的市场需求量的预测值为()。
“社会形态的发展是一种自然历史过程”这句话说的是()。
科学技术对教育的影响表现在哪些方面?
1918年,美国中等教育改组委员会提出了()的报告,指出美国教育的指导原则是民主观念的原则,中等教育的目标改组学制,建立一个中等教育与初等教育相衔接的学校系统。它奠定了“六三三学制”和“综合中学”的地位。
苏湖教法【2010年-湖南师大】【2011年-河南师大】【2012年-湖南师大/辽宁师大】【2013年-陕西师大】【2014年-北师大/福建师大】【2015年-西北师大/湖南师大】【2016年-华东师大/天津师大/浙江师大】【2017年-山东师大】【201
临近本科毕业,李明所有已修课程的成绩均是优秀。按照学校规定,如果最后一学期他的课程成绩也都是优秀,就一定可以免试读研究生。李明最后一学期有一门功课成绩未获得优秀,因此他不能免试就读研究生了。以下哪项对上述论证的评价最为恰当?
Whichisthemainideaofthenews?
A、Thewoman.B、Neitherofthem.C、Bothofthem.D、Theman.DWhohasthekey?
最新回复
(
0
)