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
ADHD Linked to Air Pollutants Children have an increased of attention problems, seen as early as grade school, if their nose
ADHD Linked to Air Pollutants Children have an increased of attention problems, seen as early as grade school, if their nose
admin
2015-08-05
36
问题
ADHD Linked to Air Pollutants
Children have an increased of attention problems, seen as early as grade school, if their noses inhaled(吸入)a certain type of air pollution when they were pregnant. That’s the finding of a new study. Released when things aren’t burned completely, this pollution is known as polycyclic aromatic hydrocarbons, or PAHs. The biggest sources of these PAHs: the burning of fossil fuels, wood and trash.
Frederica Perera works at Columbia University’s Mailman School of Public Health in New York City. She researches how exposure to things in the environment affects children’s health. In a new study, she and her team studied the exposure to air pollution of 233 nonsmoking pregnant women in New York City. Because burning tobacco can spew(排放)PAHs into the air and lungs, Perera’s team focused on nonsmokers. The researchers wanted to probe(探查)other sources of PAHs, ones that’s would have been hard for an individual to avoid.
The team started by testing the blood of each woman during pregnancy. The reason: Any PAHs in a woman’s blood would also be available to the baby in her womb. Nine years later, the researchers investigated signs of attention problems in those children, now age 9. They asked each child’s mother a series of questions. These included whatever her child had problems doing things that needed sustained(长期的)mental effort, such as homework or games with friends. The scientists also asked if the kids had trouble following instructions or made frequent, careless mistakes. All of these can be symptoms of a disorder called Attention Deficit Hyperactivity Disorder, or ADHD. About one in U. S. children has ADHD.
Among the women studied, traffic and home heating were the primary sources of air pollution exposure, Perera and her team suspect. Some of these women had low levels of PAHs in their blood. Others had high levels. Those with high levels were five times as likely to have children who showed attention problems by age 9. The new findings were published November 5 in the journal PLOS ONE.
Kids with ADHD commonly fail in school.
选项
A、Right
B、Wrong
C、Not mentioned
答案
C
解析
文章中并未提到患有注意缺陷多动障碍的儿童在学校经常失败,故选C。
转载请注明原文地址:https://jikaoti.com/ti/Na6sFFFM
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
TalkingtoKidsaboutSARS(非典)SchoolagechildrenmaybelearningaboutSARSfromadultsandthemedia,butmaynotknowwh
InitiallythewriterdidnotwanttobuyahearingaidbecauseManypeopleleavetheirhearingproblemuntreatedbecause
A.ScientistsdonotknowexactlywhyHepatitisdevelops.B.HepatitisAoftenbreaksoutinfilthyplaceswherefoodandwa
Itisreportedthatonlyapartofpeopleexperienceintheirlife.Whenahormonalreleaseistriggered,itwillreducethepr
Earthquake1Everyyearearthquakesareresponsibleforalargenumberofdeathsandavastamountofdestructioninvariouspar
TooPoliteforWordsAJapanesecolleaguetheotherdaywastalkingaboutameetingwithamanwhomsheabruptlydescribedu
CanLoudMusicCauseHearingImpairment(损伤)?Haveyouevergonetoaconcertandrealizedthatyourseatswererightnextto
Inthebeginningofparagraphonewearetoldthatscientistscannotagree______.Plomin’sIQ-genestudyissimilartothecho
FinancialRisksSeveraltypesoffinancialriskareencounteredininternationalmarketing;themajorproblemsincludecommercia
随机试题
求定积分
肝硬化的患者发生皮肤色素沉着的原因为
呼气性呼吸困难见于下列哪种疾病
A、胸部刺痛,入夜尤甚B、胸闷隐痛,时作时止C、胸闷如窒,气短喘促D、胸闷气短,畏寒肢冷E、胸痛彻背,感寒痛甚胸痹阴寒凝滞证,其临床特点是
已知函数=()。
下列有关选取测试项目方法的说法中,正确的是()。
按照1~2位有效位数,对测量结果不确定度的数值进行修约时,一般要将最末位后面的数()。
“将符号所代表的新知识与学习者认知结构中已有的适当观念建立起非人为的和实质性的联系”属于()
谎言:欺骗
A、Hishandsweredirty.B、Hewouldnotgoforward.C、Hedidn’tobeytherules.D、Heputouthishand.C
最新回复
(
0
)