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
2022-05-08
129
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 build-up 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/vhjJ777K
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
________somethingdrastichappensbeforemidnight,thepostalworkerswillmostlikelywalkoutontheirjobs.
PeopleunanimouslyagreedthatJohnwouldhaveperformedagreatdealbetterundermore________circumstances.
Thearticleontheimportanceoforganizationsuggeststhatpeoplewhohavea________structureddailyschedulewillaccomplish
WehavelaunchedacampaigncalledTogetherScienceCan,whichbringstogetherpeoplefromabsolutelyaroundtheworldto______
Whatkindofbusinessisthespeakermostlikelycalling?
Whatistherelationshipbetweenthespeakersmostlikely?
Whatadvicedothepolicegivetothecomingpeople?
随机试题
渗出液蛋白质含量一般大于
有些人说耐得住寂寞是一种成熟,有人也说可以拥有幸福的家庭是一种成熟,有人说不在意太多是一种成熟,更有人说懂得承担是一种成熟。每个人的一生都不同,就是因为不同的经历创造了不同的成熟。成熟是一种人生境界,它只取决于你自己是否能跳进另一个境界,所以,______
下列软件中,不属于系统软件的是()。
银行存款日记账的登记依据可以是()。
为拓宽警民联系的新渠道,广泛地宣传、教育和发动广大人民群众,公安机关近年来采取的有效措施有()。
假定有下表所列的菜单结构:要求程序运行后,如果单击菜单项“大图标”,则在该菜单前添加一个“√”。以下正确的是
Healthyguiltisawarningsignalthateithersomethingdangerousisabouttohappenorsomethinghasalreadyhappenedthatneed
A、Accuratecommunicationisofutmostimportance.B、Pilotsshouldbeabletospeakseveralforeignlanguages.C、Aircontrollers
Usingatelescope,Galileodiscovered______(肉眼看不到的星球).
A、Protestingtheirunequaltreatment.B、Enduringallthehardshipswillingly.C、Fulfillingtheirdreamsthroughhardwork.D、Lea
最新回复
(
0
)