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
医学
People have worried about smog for many years, and the government has spent billions of dollars to try to clean up the air of bi
People have worried about smog for many years, and the government has spent billions of dollars to try to clean up the air of bi
admin
2013-10-31
58
问题
People have worried about smog for many years, and the government has spent billions of dollars to try to clean up the air of big cities. Now we find that there is no escape from unhealthful air. Recent studies have shown that air inside many homes, office buildings, and schools is full of pollutants; chemicals, bacteria, smoke, and gases. These pollutants are causing a group of unpleasant and dangerous symptoms that experts call "sick building syndrome". A "sick building" might be a small house in a rural area or an enormous office building in an urban center.
A recent study reached a surprising conclusion: Indoor air pollution is almost always two to five times worse than outside pollution! This is true even in buildings that are close to factories that produce chemicals. The solution to this problem would seem very clear; Open your windows and stay out of modern office buildings with windows that don’t open.
Unfortunately, the solution might not be so simple, better ventilation—a system for moving fresh air—can cut indoor air pollution to a safe level, but lack of ventilation is seldom the main cause of the problem. Experts have found that buildings create their own pollution. Imagine a typical home. The people who live there burn oil, wood, or gas for cooking and heating. They might smoke cigarettes, pipes, or cigars. They use chemicals for cleaning. They use hundreds of products made of plastic or particle board; these products—such as the shelves in Oakland High School— give off chemicals that we can’ t see but that we do breathe in. And in many areas, the ground under the building might send a dangerous gas called radon into the home. The people in the house are breathing in a "chemical soup" , and medical experts don’t yet know how dangerous this is for the human body.
In the first paragraph the author is trying to draw our attention______.
选项
A、to the improved quality of outdoor air
B、to the risks of unhealthy air
C、to the sources of pollutants
D、to indoor pollution
答案
D
解析
第一段主要是要点出室内污染以及其所导致的“sick building syndrome”。
转载请注明原文地址:https://kaotiyun.com/show/UnU3777K
本试题收录于:
医学博士外语题库考研分类
0
医学博士外语
考研
相关试题推荐
Cultureshockmightbecalledanoccupationaldiseaseofpeoplewhohavebeensuddenlytransplantedabroad.Likemostailments,
A、Topresenttheadvantagesanddisadvantagesoflifeinsurance.B、Toencouragepeopletobuylifeinsurance.C、Totellpeopleh
A、Thebuyingoflifeinsuranceisnotthebusinessofguessing.B、Theremustbeastandardamountoflifeinsuranceforpeople.
OFFTHECHANNELISLANDS,California—Largenumbersofgiantendangeredbluewhaleshavegatheredoffshoreattractingdozensofma
Despitegrowingnumbersofjoggers,CanadaFitnessSurveysacrossthecountrydemonstratethatCanadiansarelessphysicallyfit
Despitegrowingnumbersofjoggers,CanadaFitnessSurveysacrossthecountrydemonstratethatCanadiansarelessphysicallyfit
Babiesneedtobeheldandsoothedwhentheyaredisturbedorhurt.
Theideaoftest-tubebabiesmaymakeyoueitherdelightedatthewondersofmodernmedicineorirritatedwhileconsideringthe
随机试题
行政机关将罚款、没收的违法所得或者财物截留、私分或者变相私分的,由财政部门或者有关部门予以追缴,对直接负责的主管人员和其他直接责任人员依法给予行政处分后,即使情节严重可能构成犯罪的,也不再追究刑事责任。
我国规定1岁内必须完成的计划免疫是
水污染防治控制区为一般控制区的水域功能分类包括()。
依据动态目标控制理论,控制项目目标的措施有很多种,其中最重要的措施是()。
微机系统与外部交换信息主要通过()。
存储器是计算机系统中具有记忆能力的部件,用来存放各种()。
当前各大中小学校都非常注重校园文化建设,如:校园板报、班级墙报以及校园广播等,这体现了德育方法中的()。
隋唐时期的三彩陶器,标志着彩釉陶器的横空出世,同时也开启了中国陶器与西域的交流。襟怀宽广的大唐盛世,借鉴了中亚、南亚诸国的金银器造型及工艺,丰富了中国壶具的型制与装饰语言。长沙窑的盘口壶、广口壶,还有更具代表性的执壶等名声显赫的中国陶瓷,则通过陆上、海上两
确立拿破仑为“终身执政”的宪法是()。
在我国,凡关于法律条文本身需要进一步明确界限或补充规定的,由哪一个机关进行解释?()
最新回复
(
0
)