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
2017-02-28
97
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/HIaK777K
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
Heisoneoftheleaders______toattendtheimportantinternationalconference.
A、Atazoo.B、Inacafeteria.C、Onacollegecampus.D、Atanartmuseum.A判断题。男士问女士想先看猴子还是鹿,女士说想先看骆驼.问说话者在哪里.经过推断,他们在动物园,故应选A,At
Whatkindofbusinessletteristhis?Thisisaletterof______.WhatdoestheSocietyofferher?Itwillofferherasmall
We______ournewhousewithnewmaterialsandfashionablepaintings.
WhofoundedCharlesStuartUniversity?WhyarestudentsfromallovertheworldattractedbyCSU?Becauseofitsfavorable____
A、Inthesummer.B、Inthespring.C、Inthewinter.D、Intheautumn.D该题为细节题。原文中女士直接回答会在秋天结婚。
Intheearlypartofthe20thcentury,physiciansdiscoveredthatbloodtransfusionsoftenfailedbecause______.Ababy’sbloo
Therehasbeenlittleresearchconsideringearlyretirementamongwomenandits(society)______meaning.
Thoseworldfamousoil-paintings(exhibit)______attheMuseumofNewYorknowarepartoftheircollection.
Thepictureexhibitionboredmetodeath.IwishI______toit.
随机试题
维生素B12注射液的正常外观是
黄芩苷和黄芩素葛根素
下列与违法性认识的可能性有关的表述,错误的是:()
高层框架—剪力墙结构的剪力墙布置不宜过分集中,下列______符合规定?
当外网水压周期性不足,室内要求水压稳定,允许设置高位水箱的建筑时,应首先考虑采用()。
企业销售需要安装的商品时,若安装属于商品销售合同约定的卖方责任,则确认商品销售收入的时间应是(D)。
用极限法测量差别阈限时,差别阈限等于
大多数人都熟悉《西游记》,故事中的情节告诉我们,妖怪与妖怪也不同,不同的妖怪有不同的际遇:凡是没有后台的妖怪或者法术太低的妖怪都被打死了,其他的都被接走了。以下各项陈述都可以从故事情节中推出:
ThepoetWilliamCarlosWilliamswasaNewJerseyphysician.
PASSAGETHREEWhydoesTNTprovideemergencyhelpandknowledgetransfer?
最新回复
(
0
)