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
2020-03-14
73
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://www.kaotiyun.com/show/WU4K777K
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
Whoisthebookaddressedprimarilyto?Whyarethesemi-scientificorsemi-technicalwordsdifficulttoforeignstudents?
AdvanceNoticeofTVProgramTelevisionSaturday,Apri
WhydidBillgivethisadvice?BecauseTomalwaysdoes______ofwhatpeoplehaveadvised.Howmanybooksdoesthelibraryco
Accordingtothefirstparagraph,whatattitudedopeopletaketowardsadvertising?Themainfunctionofadvertisingis______.
A、Lawyerandclient.B、Studentandteacher.C、Shopassistantandcustomer.D、Managerandemployee.CWhat’stheprobablerelation
PeoplewhovisittheUnitedStatessometimeshopetoknowhowthestatesgottheirnames.Someofthemostinterestingnamescam
Haveyoueverwonderedwhatit’sliketoliveonthewideSerengetiPlainsorexperiencethebeautyofanightintheSaharaDes
Eatingplentyoffreshfruitandvegetableswillhelpyoutostay(health)______.
Generally(speak)______,IpreferChinesefoodtowesternfood.
A、In1840.B、In1820.C、In1804.D、In1890.A对话中男士说“Youknow,thefirstpostagestampswereissuedinBntainin1840”,故选A
随机试题
从形式上看,与荒诞相似的审美形态是()
患者男性,21岁,学生,10天前曾到北京旅游。因发热2天于2003年5月6日入院。体温在39℃左右,伴头痛及全身酸痛,全身乏力,轻度腹泻为稀便,一日2~3次;干咳,时有胸闷,自觉有呼吸困难。听诊:两肺呼吸音粗,肺底可闻少许湿哕音。血常规:WBC3.6×1
A.红细胞管型B.白细胞管型C.上皮细胞管型D.透明管型急性肾小管坏死,尿中可见
引起血钾增高的原因不包括
根据解剖方位,畜体可有互相垂直的三种类型的假想切面()。
药品标准是指对药品的质量指标、生产工艺和检验方法等所作的技术要求和规范。下列关于药品标准的说法,错误的是
对同一目标进行重复探测时,相邻两次探测的时间间隔,称为遥感影像的()。
资产配置的五个步骤包括:①调查了解客户;②建立多元化产品组合;③风险规划与保障资产拨备;④建立长期投资储蓄;⑤生活设计与生活资产拨备。按正确顺序应为()。
(2003年考试真题)银行存款余额调节表是调整企业银行存款账面余额的原始凭证。()
DearLinda,IhavebeeninEnglandthreemonthsnow.Ihopeyoudon’tthinkI’veforgottenyou.Therehavebeensomanyplac
最新回复
(
0
)