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
43
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] 【D10】
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
average levels
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3722619.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
Oneofmy______cametoseemeonSunday.A、friendB、friendsC、thefriendsBone
Therobberhadescapedandwasnowheretobefoundwhenthepolice______.A、arri
Howeverimportantwemayregardschoollifetobe,thereisnodenyingthat
Bookshavealwaysbeenthemaintoolsforteaching.Butavastnumberofnew
北京的天坛(TempleofHeaven)建于明代永乐年间,与紫禁城差不多同时完工(1420年)。永乐皇帝由南京迁都北京,他所做的一件重要的事就是到
Theword"plastic"comesfromtheGreekword"plastikos"andisusedtodesc
A. B. C. D.
我国儿童心理学家林崇德对儿童数概念的形成研究表明,儿童数概念形成经历四个明显阶段
A.身热不扬 B.日晡潮热 C.发热恶寒 D.壮热汗出 E.长期微热气虚
A.青霉素GB.氯霉素C.克拉维酸D.氨曲南E.头孢氨苄属于单环β-内酰胺类的是
最新回复
(
0
)