首页
登录
职称英语
Researchers say people traveling in traffic are three times more likely to s
Researchers say people traveling in traffic are three times more likely to s
游客
2023-09-20
81
管理
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 heart attack. [br] 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,他们吸人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:http://tihaiku.com/zcyy/3031412.html
相关试题推荐
Acontractisanagreementbetweentwoormorepeopleinwhichonepersonag
Acontractisanagreementbetweentwoormorepeopleinwhichonepersonag
Acontractisanagreementbetweentwoormorepeopleinwhichonepersonag
Accordingtothelatestreport,moreandmoreyoungpeopleintendtolearn______
We’lldoourbesttohelpthose(fortune)______people.unfortunatefortune是名词,意为“机
AlbertEinsteinwho(admire)______bypeopleisoneofthefamousscientists.isa
Whendidpeoplebeginridinganewkindofbike?______.[br][originaltext]
Whendidpeoplebeginridinganewkindofbike?______.[br][originaltext]
Whendidpeoplebeginridinganewkindofbike?______.[br][originaltext]
Youmanageabusiness,stocks,bonds,andpeople.Andnowyoucanmanage
随机试题
Becauseearlymanviewedillnessasdivinepunishmentandhealingaspurificatio
Thismodeloftypewriterisefficient,economicaland(practice)______forcolle
【B1】[br]【B8】A、threatenB、mingleC、fascinateD、ellipseA语意辨析。A威胁;B使混合;C迷住;D椭圆。由
[originaltext]W:Excuseme,sir.I’mnewhere.Couldyoushowmehowtomakea
设f(x)在[a,b]上连续,且f(a)
b,试证
桥梁静载试验当出现下述()等情形时,应暂时停止试验,带查明原因且能保证安全时,
简述影响幼儿亲社会行为的因素。
《土建设施运维细则》规定,爬梯应安装牢固,并可靠接地,应装设护笼或采取其他防跌落
下表为2008年我国对日本、俄罗斯两国的出口、进口额(单位:亿美元)及其增长速度
工程竣工验收时,应当具备的条件有()。A.上级部门的批准文件 B.完整的技术档
最新回复
(
0
)