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 say people traveling in traffic are three times more likely to suffer a heart attack. They say the risk of a heart a
Researchers say people traveling in traffic are three times more likely to suffer a heart attack. They say the risk of a heart a
admin
2018-07-12
21
问题
Researchers say people traveling in traffic are three times more likely to suffer a heart attack. They say the risk of a heart attack is greatest within an hour of being in traffic.
The findings are based on a German study of almost seven hundred people who suffered heart attacks. The patients described their activities during the four days before their heart attack. Researchers found that those who had been in traffic were three times more likely to have a heart attack within one hour, compared to those who had not been in traffic. Most of those in the study had been traveling by car. But some had been on bicycles and others were on buses.
Research shows that people in cars and buses are exposed to ten times the amount of pollutants as people walking on the street. That is largely because they breathe in the particles and gases released from the vehicles in front of them. Over time, these small particles speed the buildup of a sticky substance in the blood. This can cause blockages to form in the arteries around the heart and lead to a heart attack.
Other studies have also linked heart trouble to stress, similar to the kind that people face while driving in heavy traffic. But the researchers of the latest study say they do not know whether the increased heart attack risk is the result of stress or pollution. They suggest it may be a combination of stress, noise and pollution. Experts say the research shows the need for cleaner vehicles and better city planning to lower the risk of the heart attack.
The particles released from vehicles______.
选项
A、cause high blood pressure
B、make the blood stickier
C、become blocked in the arteries
D、do little harm to the heart
答案
B
解析
文章第三段第二句中指出,他们吸入了前面车辆排出的微粒和气体。第三句接着指出,时间长了,这些微粒在血液中加速堆积成黏稠物质。选项B)是对原文的同义转述,因此确定B)为本题的答案。
转载请注明原文地址:https://kaotiyun.com/show/afaK777K
本试题收录于:
大学英语三级A级题库大学英语三级分类
0
大学英语三级A级
大学英语三级
相关试题推荐
IfI______outofmyink,Iwouldhavefinishedwritingthecomposition.
官方介绍信说明:假设你是大学系主任,写信介绍本校一名毕业生张泉前往一所学校实习。内容:1.张泉是本学院的毕业生:2.张泉受委托前往对方的学校进行教学实习;3.希望对方给予张泉必要的安排和指导。Wordsfor
请求约见说明:请写信给Johnson先生,要求约见。内容:1.你将要前往洛杉矶:2.希望借此机会拜访对方、讨论未来的合作;3.建议3月20日下午4:00见面;4.如果建议的时间不方便,请对方建议另一个时
Runningyoursmallbusinessrequiresgoodstaff.Onceyoufindthem,youdon’twanttoletthemgoelsewhere.Duringanempl
A、Inacinema.B、Inalibrary.C、Inastore.D、Inabank.D推理题。本题询问对话最有可能在哪里发生。由女士的回答中的“开一个储蓄账户”可以推断这个对话最可能发生在银行柜台前.故选项D为正确答案。
Whoarethesubjectsofthesurvey?Whatkindofaccommodationisthemostattractivetostudentsaccordingtothe,surveybyB
June15,2007DearSir,Yourshipmentoftwelvethousand"Smart"watcheswasreceivedbyourcompanythismorning.However,w
Haveyouseenalivekoala?ThekoalaisoneofAustralia’smostfamousandbestlovedanimals.Ithasapeacefulcharacterand
Manfindslivingtogetherwithhisownspecies(物种)difficultenoughandlivingtogetherwithotherspeciesalmostimpossible.O
Attheinternationalconference,thefamousscientistgaveanexcellentreport_____onhisrecentexperiment.
随机试题
设函数f(x)在区间[一1,1]上可导,f’(x)0,f(1)
患者女性,57岁,右上腹痛和压痛,体温39.1℃,申请腹部超声检查。作为超声医生,根据该患者的临床症状,应该特别注意检查的脏器是
以PEG6000为基质制栓,润滑剂应选用()。
初产妇,30岁。妊娠38周,自然分娩一健康男婴,胎盘正常娩出。产后1小时发现产妇面色苍白,出冷汗,阴道流血量较多,主诉头晕、心慌和口渴。血压90/50mmHg,脉搏120次/分,既往血小板减少症,无高血压及低血压,无贫血史。该种疾病80%以上发生于
演出艺术,亦可称之为艺术或表演艺术,指的是通过演员在舞台上的现场表演来完成艺术形象创造的艺术形式。下列属于演出艺术的是()。
黄河公司以其房屋作抵押,先后向甲银行借款100万元,乙银行借款300万元,丙银行借款500万元,并依次办理了抵押登记。后丙银行与甲银行商定交换各自抵押权的顺位,并办理了变更登记,但乙银行并不知情。因黄河公司无力偿还三家银行的到期债务,银行拍卖其房屋,仅得价
下列进程关系中,不能用P、V操作来实现的是()。
关于虚拟局域网的描述中,错误的是()。
TheParthenonTheParthenon,abuildinginAthens,Greece,isperhapsoneofthemostmemorablestructuresonEarth.Built25
SteveFossettlandedinhisdestinationaheadofscheduledtimebecause
最新回复
(
0
)