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【D1】______by young people. Doctor Herbert Needleman is a professor at
A researcher says lead in the environment could be a major【D1】______by young people. Doctor Herbert Needleman is a professor at
admin
2015-01-30
106
问题
A researcher says lead in the environment could be a major【D1】______by young people. Doctor Herbert Needleman is a professor at the University of Pittsburgh School of Medicine in Pennsylvania and he【D2】______his findings at the yearly meeting of the American Association for the Advancement of Science. Doctor Needleman says the presence of lead in the brain changes the【D3】______that control actions and that can cause a person to act in【D4】______.
In the 1970s, Doctor Needleman found lower scores on【D5】______even in children who did not have such signs of lead poisoning. After that, lead was 【D6】______gasoline and paint in the United States. Yet many homes still have old lead paint. Lead was also used in older【D7】______. In fact, officials just announced stronger testing and reporting requirements as of next year for lead in American drinking water.
The newest research shows that even very small amounts of lead in bones can affect brain development. A simple【D8】______can measure lead except that an X-ray process is needed to measure levels in bone. In 2004, such tests were done on 190 young people who were【D9】______and the findings showed that their【D10】______were higher than normal. And, in 1998, three hundred children were studied and the test scores showed higher levels of aggression and learning problems in those with increased levels of lead. Yet these levels were still considered safe by the government.
【D2】
A researcher says lead in the environment could be a major(21)cause of violence by young people. Doctor Herbert Needleman is a professor at the University of Pittsburgh School of Medicine in Pennsylvania and he(22)presented his findings at the yearly meeting of the American Association for the Advancement of Science. Doctor Needleman says the presence of lead in the brain changes the(23)neurons that control actions and that can cause a person to act in(24)antisocial and criminal ways.
In the 1970s, Doctor Needleman found lower scores on(25)intelligence tests even in children who did not have such signs of lead poisoning. After that, lead was(26)removed from gasoline and paint in the United States. Yet many homes still have old lead paint. Lead was also used in older(27)water pipes. In fact, officials just announced stronger testing and reporting requirements as from next year for lead in American drinking water.
The newest research shows that even very small amounts of lead in bones can affect brain development. A simple(28)blood test can measure lead except that an X-ray process is needed to measure levels in bone. In 2004, such tests were done on 190 young people who were(29)in jail and the findings showed that their(30)average levels were higher than normal. And, in 1998, three hundred children were studied and the test scores showed higher levels of aggression and learning problems in those with increased levels of lead. Yet these levels were still considered safe by the government.
选项
答案
presented
解析
转载请注明原文地址:https://kaotiyun.com/show/ObNK777K
本试题收录于:
C类竞赛(非英语专业本科)题库大学生英语竞赛(NECCS)分类
0
C类竞赛(非英语专业本科)
大学生英语竞赛(NECCS)
相关试题推荐
BusservicesbetweenTownCentreandNewtonHousingEstatewillbe________untilthemotorwayisrepaired.
PassageTwoWhatledtotheabnormalnumberofhockeyplayersbornatthebeginningofayear?
(1)Nearly60millionvisitorsflocktothe384nationalparksacrossAmericaeveryyear.Andyouwon’thavetowanderfarfrom
Youshouldn’thaveaskedtheboytorunacrossthestreettobuythings;he________byapassingcar.
Fromtheinformationinthechart,wecanseethereisacloseconnectionbetween______theoryandtheactual______.
Whatcausesgumdisease?______
WaterforLifeWaterisessentialforlife.Yetmanymillionsofpeoplearoundtheworldfaceawater【16】______(short).Ma
Thesubjectofthislectureishorology,thescienceofmeasuringtime.The【D1】______hascomealongwaysinceancienttimes.It
过分多疑的心理,因素很是复杂,决非单纯神经过敏可以解释。(beexplainedby)
过分多疑的心理,因素很是复杂,决非单纯神经过敏可以解释。(beexplainedby)
随机试题
滚轮架在工作中不仅能上下移动还能转动。()
西晋律学家张斐认为法律的基本精神是
在生产安全事故应急救援方面,施工单位应当做哪些工作?()
张某购买刘某的住房,两人签订了二手房买卖合同,约定总价款为260万元,双方约定违约金26万元,张某向刘某支付定金70万元,价款于半年后一次付清。5个月后,该住房价格上涨为400万元,若刘某违约,张某可获得的最高违约责任价款是()万元。
在对安装工程预算进行审查时,最适用于工程量较小,且工艺比较简单的工程的方法是( )。
某新建建设项目的基础数据如下:(1)项目建设期2年,运营期10年,建设投资3600万元,预计全部形成固定资产。(2)项目建设投资来源为自有资金和贷款,贷款总额为2000万元,贷款年利率6%(按年计息),贷款合同约定运营期第1年按照项目的最大偿还能力还款
下图为某地区地理信息系统数据库示意图。谚语《九九歌》中“一九二九不出手,三九四九冰上走,五九六九河边看柳,七九河开,八九雁来,九九加一九,耕牛遍地走”所述地区()。
InBritain,TonyBlair’schieftaskisto______.TheconclusioncanbedrawnfromthetextthatBritain’spublicservicesmay
TodayTVaudiencesallovertheworldareaccustomedtothesightofAmericanastronautsintip-topcondition,withfairhair,c
Healthcostshavebeenrisingformiddleclassfamilies.NearlyoneinfiveAmericanscannotaffordhealthinsurance.(36)______
最新回复
(
0
)