首页
登录
职称英语
[originaltext] Since 1939, numerous scientific studies have been conducted t
[originaltext] Since 1939, numerous scientific studies have been conducted t
游客
2023-09-03
30
管理
问题
Since 1939, numerous scientific studies have been conducted to determine whether smoking is a health hazard. The trend of the evidence has been consistent and indicates that there is a serious health risk Research teams have conducted studies that show beyond all reasonable doubt that cigarette smoking is associated with a shortened life expectancy.
Cigarette smoking is believed by most research workers in this field to be an important factor in the development of cancer of the lungs and cancer of throat. Male cigarette smokers have a higher death rate from heart disease than nonsmoking makes. Female smokers are thought to be less affected because they do not breathe in the smoke so deeply.
It might be helpful to look at what smoking actually does to the human body. Smoke is a mixture of gases, vaporized chemicals, minute particles of ash, and other things. There is also nicotine, which is a powerful poison and black tar. As the smoke is breathed in, all these components form deposits on the membranes of the lungs. One point of concentration of deposits is where the air tube divides. Most lung cancer begins at this point.
Smoking also affects the heart and Blood vessels. It is known to be related to Beurger’ s disease, a narrowing of the small veins in the hands and feet that can cause great pain. Smokers also die much more often from heart disease.
选项
A、In 1939.
B、We don’t know.
C、Only these years.
D、This year.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2983182.html
相关试题推荐
Theywere______intheirscientificresearch,notknowingwhathappenedjustou
Asmorefinancial_________havebeenconductedonline,peopleenjoyedtheimmen
Recentstudiesshowthatadvertisingusually______competitionandthereforelo
[originaltext]W:Areyoureallygoingtoquityourjob?M:Well...I’mnotsure.
[originaltext]W:Areyoureallygoingtoquityourjob?M:Well...I’mnotsure.
[originaltext]W:Areyoureallygoingtoquityourjob?M:Well...I’mnotsure.
[originaltext]W:Youcaneithergowithmeoryoucanstayhereattheapartmen
[originaltext]W:Youcaneithergowithmeoryoucanstayhereattheapartmen
[originaltext]W:Youcaneithergowithmeoryoucanstayhereattheapartmen
[originaltext]W:Youcaneithergowithmeoryoucanstayhereattheapartmen
随机试题
Whatisthemainideaofparagraph1?[br]Whatistheauthor’sopinionaboutth
I’mawfullytiredandcan’tgoanyfarther,Ted.Let’shavearest,______?A、sha
OneofthemeasurestakenbytheRooseveltAdministrationintheNewDealwasto
StructureoftheCanadianGovernmentI.IntroductionA.Ca
[originaltext]W:Hey,George,you’refromBoston,right?M:Yeah,I’mfromNewt
Universityexpenseisofa(consider)______sumofmoney.considerable
一般可以通过分析价格变化与交易量变化的关系来验证价格运动的方向,下列说法正确的有()。A、如果价格上升时交易量上升,说明大量交易者跟市卖出B、如果交易
()的水平体现着商业银行的核心竞争力。A.客户管理 B.资本管理 C.风险管
物流服务项目管理的根本内容包括()。A、识别对物流服务的各种要求和期望B、管理
银行、信托公司开展业务合作,由( )实施监督管理。A.中国银行业监督管理委员会
最新回复
(
0
)