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
11
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] 【D5】
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
intelligence tests
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3722614.html
相关试题推荐
Aresearchersaysleadintheenvironmentcouldbeamajor【D1】______byyoung
Aresearchersaysleadintheenvironmentcouldbeamajor【D1】______byyoung
Aresearchersaysleadintheenvironmentcouldbeamajor【D1】______byyoung
Aresearchersaysleadintheenvironmentcouldbeamajor【D1】______byyoung
Aresearchersaysleadintheenvironmentcouldbeamajor【D1】______byyoung
Aresearchersaysleadintheenvironmentcouldbeamajor【D1】______byyoung
Intheearly1950stheresearcherswhoproducedthefirstcladglassoptical
Intheearly1950stheresearcherswhoproducedthefirstcladglassoptical
Intheearly1950stheresearcherswhoproducedthefirstcladglassoptical
Intheearly1950stheresearcherswhoproducedthefirstcladglassoptical
随机试题
Whendidthescientistslearnagreatdealaboutsleepanddreams?In_________
昏迷的外伤病员运送时最佳体位是()A.随时变动 B.侧卧位 C.
关于老年人药物动力学的叙述错误的是A.老人药物代谢缓慢,排泄受限制 B.老人对
A.稳态血药浓度(C) B.生物利用度 C.半衰期(T) D.血药浓度-时
认真阅读下列材料,并按要求作答。 请根据上述材料完成下列任务: (1
B
有一垂直放置的渐缩管,内径由d1=300mm渐缩至d2=150mm,水从下而上自
投入期企业可以采取的营销策略有( )。A.快速掠取策略 B.缓慢渗透策略
采用作业成本法核算成本的指导思想是()。A.作业量与成本成正比 B.资源消耗与
( )在质量手册和作业文件间起承上启下的作用。A.程序文件 B.质量计划
最新回复
(
0
)