首页
登录
职称英语
[originaltext] A researcher at the University of Rochester in New York has fo
[originaltext] A researcher at the University of Rochester in New York has fo
游客
2023-12-17
69
管理
问题
A researcher at the University of Rochester in New York has found that workers exposed to high levels of lead on the job have an increased risk of dying from brain cancer. Epidemiologist Edwin van Wijngaarden looked at data about more than 300,000 people over a nine-year period, comparing the kinds of jobs they had with their causes of death, and he saw a correlation. Mechanics are among the workers more likely lo develop deadly brain tumors due to occupational lead exposure. He says, automobile and heavy equipment mechanics, painters and welders--who were more likely to be exposed to lead for longer periods of time--had even higher risks of developing brain cancer than workers unexposed to lead. Most research on lead has focused on its effect on children. Van Wijngaarden says not much is known about its impact over a lifetime. Wijngaarden found only 119 brain tumor deaths. He is continuing his research, looking now at patients who already have brain tumors, to see whether they have higher levels of lead in their bones than other patients.
选项
A、there is a definite relationship between high levels of lead and death.
B、the patients with brain tumors have higher levels of lead in their bones.
C、some workers have higher risks of developing brain cancers than others.
D、higher levels of lead have a long-term effect on children over a lifetime.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3282263.html
相关试题推荐
【1】[br]【6】[originaltext]Intoday’slecture,wearegoingtotalkaboutho
【1】[br]【4】[originaltext]Intoday’slecture,wearegoingtotalkaboutho
【1】[br]【3】[originaltext]Intoday’slecture,wearegoingtotalkaboutho
【1】[br]【2】[originaltext]Intoday’slecture,wearegoingtotalkaboutho
Howdothescientistsmeasurethepitch?[br][originaltext]VoiceOne:This
Howdothescientistsmeasurethepitch?[br][originaltext]VoiceOne:This
【1】[br]【9】[originaltext]Itisatimewornsignofoldageandfrailty.Yet
【1】[br]【7】[originaltext]Itisatimewornsignofoldageandfrailty.Yet
【1】[br]【6】[originaltext]Itisatimewornsignofoldageandfrailty.Yet
【1】[br]【5】[originaltext]Itisatimewornsignofoldageandfrailty.Yet
随机试题
—HowcanImendit?—Well,lookatthe______,please.A、explanationsB、expression
Inthepushtocuttheamountofcarbonwereleaseintotheatmosphere,solu
ConfirmingYourAcceptanceIfpossible,youareadvisedto
Thedifferencebetweenaliquidandagasisobvious【C1】______theconditions
患儿,男,5岁,体重26kg.你认为该患儿是A.极重度肥胖 B.中度肥胖 C
疖病是指A.一个毛囊及其附属皮脂腺的急性化脓性感染扩散到皮下组织 B.多个相
以下各项依法应接受审计机关审计监督的是()。 A.财政部 B.天津市
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
下列费用中,属于建筑安装工程企业管理费的有()。A.施工企业集体福利费 B.
建筑管道中,下列设备需做水压试验。试验压力如设计无要求时为工作压力的1.5倍,但
最新回复
(
0
)