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
Researchers have known that secondhand smoke can be just as dangerous for nonsmokers as smoking is for smokers, but now there’s
Researchers have known that secondhand smoke can be just as dangerous for nonsmokers as smoking is for smokers, but now there’s
admin
2010-01-10
93
问题
Researchers have known that secondhand smoke can be just as dangerous for nonsmokers as smoking is for smokers, but now there’s fresh evidence quantifying just how hazardous the after-burn from cigarettes can be, and how quickly it affects your body. Scientists at the Oregon Department of Health documented for the first time an hourly buildup of a cancer-causing compound from cigarette smoke in the blood of nonsmokers working in bars and restaurants in the state.
Reporting in the American Journal of Public Health, the researchers found that waiters and bartenders working a typical night shift gradually accumulated higher levels of NNK, a carcinogen in cigarette smoke, at the rate of 6 % each hour they worked. NNK is known to be involved in inducing lung cancer in both lab rats and smokers.
"We were somewhat surprised by the immediacy of the effect and the fact that we could measure the average hourly increase," says Michael Stark, the lead author of the study and a principal investigator at the Mulmomah County Health Department in Oregon.
The authors are confident that the increases in NNK in the workers they tested most likely came from their exposure to smoke -- the study included a control group of similar subjects in restaurants where no smoking was allowed. "There is experimental evidence from studies where you put nonsmokers in a room, blow smoke into the room and measure their artery function, that you see the platelets get sticky, which can cause clots and lead to a heart attack, and the ability of the arteries to dilate decreases very rapidly," says Dr. Matthew McKenna, director of the office on smoking and public health for the Centers for Disease Control.
All of which could mean more time loitering outside buildings and in alleyways for smokers intent on grabbing a puff. Thirteen states now prohibit smoking in restaurants altogether (most of these include bars as well), and while 11 states still put no restrictions on lighting up, individual cities within those states -- such as Austin in Texas, for example -- have passed legislation banning smoking in eating establishments and other public areas.
It’s just getting harder to refute the scientific evidence; in a study done in Scotland several months after that nation instituted a ban on smoking in public places, researchers found that following the ban, bar patrons showed stronger lung capacity and reduced levels of inflammation (a red flag for a number of chronic diseases, including heart disease and asthma). "We made it pretty clear that the science on this is pretty irrefutable," says McKenna. And if smokers have fewer places to smoke, that message may finally get heard.
How many states in the United States have banned smoking in restaurants?
选项
A、12.
B、13.
C、14.
D、15.
答案
B
解析
这是一道细节题。根据原文第五段可知,“Thirteen states now prohibit smoking in restaurants altogether.”(现在,13个州在所有饭店都实行禁烟制。)故选B。
转载请注明原文地址:https://kaotiyun.com/show/QbcO777K
本试题收录于:
NAETI中级口译笔试题库外语翻译证书(NAETI)分类
0
NAETI中级口译笔试
外语翻译证书(NAETI)
相关试题推荐
Hewasfinallyenrolledintoamemberofthecollegeafterayear’shardworking.
The20th-centurypoemsuggeststosomethingwehavebeenabletofindnothingabout.
Itsoundslikeasciencefiction,butresearcherssayit’sascientificfact:Microscopicorganismsdubbed"killeralgae"arepa
Jimmyearnshislivingby______worksofartinthemuseum.
LifeandtheWorldLifeandtheworld,orwhateverwecallthatwhichweareandfeel,isanastonishingthing.Themistoff
《北京2008》和大家见面了!在对这份精美的杂志表示衷心祝贺的同时,希望它更好地反映2008年北京奥运会的筹备情况,展示北京东方文明故都的城市风貌、厚重的历史、灿烂的文化和充满生机的现代气息,使这份刊物成为增强我们同国际奥林匹克大家庭之间联系的桥梁和纽带。
我们需要的是一种“宽容的文化”,一种与人们认同开放的外向型精神需求相适应的方法。宽容不是指对那些我们认为是“其他人”的人漠不关心,也不是对他们的文化、宗教、背景与起源漠然置之。宽容需要我们了解并理解这些“其他人”。当熟悉的体制不复存在,国界变得无
核安全核能自诞生之日起,对人类的经济社会产生了积极作用。但人们也看到,核能应用存在巨大风险。福岛核泄漏事故后,一些国家开始限制和放弃核能的开发和使用。而中国的立场是,在接下来相当长的时期内,核能仍是我们确保能源安全,保障经济社会发展,应
A、Petroleum.B、Naturalgas.C、Wood.D、Coal.D根据题千中关键词fossilfuel,迅速在原文中找寻有关信息,发现原文最后一句提到“...morefossilfuels,notablycoal...”即
A、optimisticB、pessimisticC、cautiousD、unconfidentA通过支持性细节理解中心句中重要短语的含义。本题expect的正确含义,需根据其后句的支持性细节描写来判断。
随机试题
脉冲氩弧焊与普通氩弧焊的区别是在________上。
促进胃液分泌的因素抑制胃液分泌的因素
港口与航道工程安全生产要求中,水上沉桩操作人员都必须做到“二戴一穿”,“二戴一穿”是指()、戴安全帽、穿救生衣。
衰减串扰比是双绞线的重要技术指标,有时也用()来表示。
国际重复征税产生的根本原因是()。
如果集团项目组认为对重要组成部分财务信息执行的工作、对集团层面控制和合并过程执行的工作以及在集团层面实施的分析程序还不能获取形成集团审计意见所依据的充分、适当的审计证据,集团项目组应当选择某些不重要的组成部分,并对已选择的组成部分财务信息亲自执行或由代表集
A.条件(1)充分,但条件(2)不充分。B.条件(2)充分,但条件(1)不充分。C.条件(1)和条件(2)单独都不充分,但联合起来充分。D.条件(1)充分,条件(2)也充分。E.条件(1)和条件(2)单独都不充分,联合起来也不充分。已知a,b是
因为f(x)在[0,1]上二阶可导,所以f(x)在[0,1]上连续且f(0)=f(1)=0,由闭区间上连续函数最值定理知,f(x)在[0,1]取到最小值且最小值在(0,1)内达到,即存在c∈(0,1),使得f(c)=-1,再由费马定理知f’(c)=0,根据
风险分析在软件项目开发中具有重要作用,包括风险识别、风险预测、风险评估和风险控制等。“建立风险条目检查表”是(18)时的活动,“描述风险的结果”是(19)时的活动。
对长度为n的线性表进行顺序查找,在最坏情况下所需要的比较次数为
最新回复
(
0
)