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
Mobile Phones and Public Health Vocabulary and Expressions epidemiological cohort studies glioma cumulative t
Mobile Phones and Public Health Vocabulary and Expressions epidemiological cohort studies glioma cumulative t
admin
2018-06-10
80
问题
Mobile Phones and Public Health
Vocabulary and Expressions
epidemiological cohort studies glioma cumulative
tumour endpoints meningioma retrospective
case-control studies carcinogenic
Why IARC has classified radiofrequency electromagnetic fields into Group 2B?
Mobile Phones and Public Health
A large number of studies have been performed over the last two decades to assess whether mobile phones pose a potential health risk. Epidemiological research examining potential long-term risks from radiofrequency exposure has mostly looked for an association between brain tumours and mobile phone use. However, because many cancers are not detectable until many years after the interactions that led to the tumour, and since mobile phones were not widely used until the early 1990s, epidemiological studies at present can only assess those cancers that become evident within shorter time periods. However, results of animal studies consistently show no increased cancer risk for long-term exposure to radiofrequency fields.
Several large multinational epidemiological studies have been completed or are ongoing, including case-control studies and prospective cohort studies examining a number of health endpoints in adults. The largest retrospective case-control study to date on adults, Interphone, coordinated by the International Agency for Research on Cancer (IARC), was designed to determine whether there are links between use of mobile phones and head and neck cancers in adults.
The international pooled analysis of data gathered from 13 participating countries found no increased risk of glioma or meningioma with mobile phone use of more than 10 years. There are some indications of an increased risk of glioma for those who reported the highest 10% of cumulative hours of cell phone use, although there was no consistent trend of increasing risk with greater duration of use. The researchers concluded that biases and errors limit the strength of these conclusions and prevent a causal interpretation.
Based largely on this data, IARC has classified radiofrequency electromagnetic fields as possibly carcinogenic to humans (Group 2B), a category used when a causal association is considered credible, but when chance and bias cannot be ruled out with reasonable confidence.
While an increased risk of brain tumors is not established, the increasing use of mobile phones and the lack of data for mobile phone use over time periods longer than 15 years warrant further research of mobile phone use and brain cancer risk. In particular, with the recent popularity of mobile phone use among younger people, and therefore a potentially longer lifetime of exposure, the WHO has promoted further research on this group. Several studies investigating potential health effects in children and adolescents are underway.
选项
A、They may cause cancer but we are not quite sure.
B、Group 2B category means carcinogenic to animals.
C、A causal association cannot be considered credible.
D、Chances and bias can not be ruled out in scientific studies.
答案
A
解析
根据原文“a category used when a causal association is considered credible,but when chance and bias cannot be ruled out with reasonable confidence”可知,“Group 2B”的基本特点是可能是病因,但人们也不能完全确信,故A为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/DXrO777K
本试题收录于:
CATTI三级口译综合能力题库翻译专业资格(CATTI)分类
0
CATTI三级口译综合能力
翻译专业资格(CATTI)
相关试题推荐
______anytroublewiththeboiler,theautomaticcontrollingunitwillcutoffthefueloilsupply.
Therebelsareplanningthe______oftheKingandtheestablishmentofarepublic.
Itmustcomplystrictlyinsafetystandardstobeacceptedbythepublic,andatthesametimeitmustdemonstratethatnohealt
______alanguagefamilyisagroupoflanguageswithacommonoriginandsimilarvocabulary,grammar,andsoundsystem.
Wheneverthegovernmentincreasespublicservices,______becausemoreworkersareneededtocarryouttheseservices.
Ofalltheareasoflearningthemostimportantisthedevelopmentofattitudes.Emotionalreactionsaswellaslogicalthought
Ofalltheareasoflearningthemostimportantisthedevelopmentofattitudes.Emotionalreactionsaswellaslogicalthought
Ofalltheareasoflearningthemostimportantisthedevelopmentofattitudes.Emotionalreactionsaswellaslogicalthought
Lifeinsurance,beforeavailableonlytoyoung,healthypersons,cannowheobtainedfromoldpeople,andevenforpets.
随机试题
思维定势
函数f(x,y)=2x2+ax+xy2+2y在点(1,-1)处取得极值,则a=________.
水源暴发流行的肝炎最常见的病原是
患者男,20岁,头部被木棒击伤后昏迷12分钟,清醒后诉头痛并呕吐1次,入院后患者若出现急性颅内压增高,伴随其出现的生命体征是
总分类账户可以用总分类账户本期()对照表替代。
下列选项中,可用作单一投资方案可行与否判定的是()。
某股份有限公司从20X1年1月1日起对期末存货采用成本与可变现净值孰抵计价,成本与可变现净值的比较采用单项比较法。该公司20X1年6月30日A、B、C三种存货的成本分别为:30万元、21万元、36万元;A、B、C三种存货的可变现净值分别为:28万元、25万
下列成语中画线的字的字形、读音全对的一组是:
打开Word2003文档一般是指()。
A、Absent-mindednessandinattention.B、Seriousemotionalproblems.C、Heartattacks,strokesandkidneydisease.D、Pooreyesight.
最新回复
(
0
)