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
85
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
()市场营销学()服务业经营管理()制造系统工程学()社会工作(副修辅导学)
Sometimes______abusinesscanfeellikeatoughdecisiontomake,nomatterhowgoodyourideais.
Itisknowntoall______discoveredtheAmericacontinent.
Accordingtothepassage,whenthreepeoplelookoutthesamewindow,______.Theword"ticket"(Para.1)probablymeans______.
Hissuperiorgradesathighschoolenabledhimtoenrolatthetuition-freeCollegeoftheCityofNewYork.
A—customsofficerB—fashiondesignerC—ticketcollectorD—taxcommissionerE—producebroker
Itwouldbedifficulttohaveasocietylikeourswithoutpublicgoodssuchasdefense,transportation,andotherservices.
Havingatriparoundthecountryiscertainlygoodfortheoldcouple,butitremains______whethertheywillenjoyit.
Nomatterwhoheis,youngorold,people’sstateofmindtendstokeep______withtherapidchangeofsociety.
随机试题
双足外踝后方,向上延伸四横指的区域是()反射区。
由于四环素的各种不良反应,以下哪些人应禁用此药
确定房屋沉降缝的宽度应根据()。
“备案号”栏应填写()。“运费”栏应填写()。
泌乳量受多方面的影响,这些因素有()。
()是按照班级授课制的培养目标和教育规范组织起来的,以共同学习活动和直接人际交往为特征的社会心理共同体。
尽管大多数时候,人类学家以科学家自居,但不可否认的是,每个人类学家与他们的研究对象都是活生生的个人,各种感受的交织,情感的触动免不了影响研究的结果。不过,不要紧,承认这种“沮丧、尴尬、疲倦和窘迫”并不是一件太糟的事情,而且越来越被看做是田野叙述中,一个有益
清晨起床,只需要轻轻一声“小爱同学”,卧室的窗帘便会自动打开;老人起夜,不用在漆黑的室内瞎摸开关,只需要起身感应,智能灯光就能轻柔地照亮房间;忙碌一天,到家前10分钟,空调已开启舒适模式,扫地机器人已完成清扫……随着智能家居的研发和普及,这样的场景正逐步走
设有如下程序OptionBase1PrivateSubCommand1_Click()Dima(10)AsIntegerDimnAs
Whatisthepurposeofthisspeech?
最新回复
(
0
)