首页
登录
职称英语
A researcher says lead in the environment could be a major【D1】______by young
A researcher says lead in the environment could be a major【D1】______by young
游客
2024-08-16
32
管理
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. [br] 【D3】
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
neurons
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3722612.html
相关试题推荐
Aresearchersaysleadintheenvironmentcouldbeamajor【D1】______byyoung
Aresearchersaysleadintheenvironmentcouldbeamajor【D1】______byyoung
Aresearchersaysleadintheenvironmentcouldbeamajor【D1】______byyoung
Aresearchersaysleadintheenvironmentcouldbeamajor【D1】______byyoung
Intheearly1950stheresearcherswhoproducedthefirstcladglassoptical
Intheearly1950stheresearcherswhoproducedthefirstcladglassoptical
Intheearly1950stheresearcherswhoproducedthefirstcladglassoptical
Intheearly1950stheresearcherswhoproducedthefirstcladglassoptical
Intheearly1950stheresearcherswhoproducedthefirstcladglassoptical
Intheearly1950stheresearcherswhoproducedthefirstcladglassoptical
随机试题
Businessesarestructuredindifferentwaystomeetdifferentneeds.The【B1】
WhowontheWorldCup1994footballgame?WhathappenedattheUnitedNations?H
[originaltext]Thefirst"NationalSampleSurveyofPeople’sReadingTrends"
人际传播的形式包括A.组织与群体之间 B.个人与个人之间 C.群体与群体之间
不是甾体激素的是A.雌酮 B.雌二醇 C.黄体酮 D.睾酮 E.卵泡刺激
期末年金是指在一定时期内每期( )等额收付的系列款项。A.期初 B.期末 C
读全国(中国)和长江三角洲地区近50年耕地年递减率变化图, 长江三角洲地区
为非离子型表面活性剂的是A.硬脂酸B.卵磷脂C.泊洛沙姆188D.硫酸化蓖麻油E
Thechangeinthatvillagewasmiraculou
法定优先受偿款不包括()。A.拍卖变卖的费用 B.已抵押担保的债权数额
最新回复
(
0
)