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
2011-01-10
52
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 waitstaff 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
转载请注明原文地址:https://kaotiyun.com/show/SDcO777K
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
Somepeoplethinkmoreofanimalsthanwillofchildren.
Although"namingrights"haveproliferatedinAmericanhighereducationforthepastseveraldecades,thephenomenonhasrecentl
Shouldwecareifover150knownspeciesofanimalshave【C1】______fromtheearthinthelastfiftyyears?Shouldwebeconcerned
Shouldwecareifover150knownspeciesofanimalshave【C1】______fromtheearthinthelastfiftyyears?Shouldwebeconcerned
Someconsumerresearchersdistinguish【C1】______"rational"motivesand"emotional"(or"non-rational"motives.Theyusetheterm
______topopularexpectation,thisworkisinfactquiteeasy.
下面你将听到一段有关中美贸易关系的讲话。在冷战结束后的新形势下,两国要不要及如何发展双边关系,是中美两国面临的重大课题。“永久正常贸易关系”的通过表明,在美国,支持发展中美关系的力量占了上风,美国政府、国会、工商企业界和公众的主流都支持以建设性的
A、19years.B、5months.C、10months.D、2monthsandahalf.D根据题干中关键词“离职再工作期”找寻到原文相关信息处,即第二段第二句“...theaveragejobsearchhasst
越来越多的中国人发现,每天挤时间看书越来越困难。而在过去10年中,中国的互联网用户数量激增,这表明人们的阅读习惯正在发生巨大变化。专家将这一趋势归因于当今社会鼓励一夜成名或快速成功的社会价值观,而摒弃了过去的那种靠勤奋努力获得成功的观念。在当今的读
随机试题
A.左肾右命门说B.两肾总号命门说C.“七节之旁,中有小心”说D.命门为“水火之宅”说《难经》关于命门的论点是
凋亡是指细胞的
偏头痛临床主要特点为
下列各种情况,需要进行全面财产清查的有()。
北宋词坛豪放派的代表作家是()。
为帮助贫困家庭女大学生,某高校妇委会发出通知,要求所有在校职工都参加捐款,所捐款项用来帮助贫困家庭的女大学生。根据《中华人民共和国公益事业捐赠法》的相关规定,该高校妇委会的这一做法违背了公益事业捐赠的()。
比较优势论
A、2.B、12.C、4.D、6.B短文提到,每个学生总共要练6个小时的车。学生被分成每组4个人,他们和教练每次出去练车都是两个小时,故每个学生每次外出可练车半小时。要练够6小时,则总共需外出12次,故选B。其他选项的字数在录音中都能听到,但说的都
A、At10.B、At10:30.C、At11.D、At11:30.BW:Marymissedherclassagain,didn’tshe?M:Well,shewenttothe10o’clocklectu
Thelifeofthecowboywasnotalways,ofcourse,asromanticasHollywoodshowedit.Itwasoften【S1】______hard.Thecowboyh
最新回复
(
0
)