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
Most people are aware that outdoor air pollution can damage their health, but many do not know that indoor air pollution also ca
Most people are aware that outdoor air pollution can damage their health, but many do not know that indoor air pollution also ca
admin
2016-04-03
38
问题
Most people are aware that outdoor air pollution can damage their health, but many do not know that indoor air pollution also can cause【B1】______ health effects. U.S. Environmental Protection Agency studies of human exposure to air pollutants indicate that indoor levels of pollutants may be 2 to 5 times, and【B2】______ more than 100 times, higher than outdoor levels. These levels of indoor air pollutants may be of particular concern because most people spend about 90% of their time indoors.
Many sources of indoor air pollution can be found in any home or office. Health effects from indoor air pollutants may be【B3】______ soon after exposure or, possibly, years later. Immediate effects may【B4】______ after a single exposure or repeated exposures. These include headaches, dizziness,【B5】______, and irritation(疼痛)of the eyes, nose, and throat. Such immediate effects are usually short-term and treatable. Sometimes the treatment is simply 【B6】______ the person’s exposure to the source of the pollution, if it can be identified. The likelihood of immediate reactions to indoor air pollutants【B7】______ several factors. Age and preexisting medical conditions are two important【B8】______.
Certain immediate effects are similar to those from colds or other diseases, so it is often difficult to determine if the symptoms are a result of exposure to indoor air pollution. For this reason, it is important to【B9】______ the time and place symptoms occur. If the symptoms 【B10】______ or go away when a person is away from home, for example, an effort should be made to identify indoor air pollutant sources that may be possible causes.
【B4】
选项
答案
show up
解析
根据空格前的情态动词may判断这里应填入原形动词。show up的意思是“出现”。
转载请注明原文地址:https://kaotiyun.com/show/fbG7777K
0
大学英语六级
相关试题推荐
A、Itiseatingintoitsbanks.B、Itwindsitswaytothesea.C、Itiswideanddeep.D、Itisquicklyrising.C对话中男士指明他们面前的这条河河面宽
A、Inplaceofphysicaltherapy.B、Tocontrolbrainproblems.C、Topreventheartdisease.D、Torelievedepression.D由男士所说的话可知,音乐疗
A、Theysufferfrommentalpains.B、Theystartdoingsomethinginanactiveway.C、Theybecomeuninterestedinclassactivities.
AlcoholPricing:MulledWhines[A]BydaytouristsflocktoPlazadeEspaaincentralMadridtosnapphotosbesidethesculpture
A、Anattorney.B、Ahealthcareconsultant.C、Atownplanner.D、Abeautician.A由男士提到的I’malawyer可知,男士是个律师,故答案为A)。
A、Heistherightmantogetthejobdone.B、Heisamanwithprofessionalexpertise.C、Heisnoteasytogetalongwith.D、Hei
A、Aprofessionalwindowcleaner.B、Automotivesalesperson.C、Servicestationattendant.D、Grocerystoremanager.C预读选项可判断,本题是身份关
Self-imageisthepictureyouhaveofyourself,thesortofpersonyoubelieveyouare.Includedinyourself-imagearethe【B1】_
A、Itwasthefirstnationalpark.B、Itwasthefirstregionexploredbypioneers.C、Itisnotaccessibletoeveryone.D、Itisno
A、Shesensesnopurposetoherownlifethatsherefusestoseeanyone.B、Shefeelsdepressedthatsheneedstotalktoherfami
随机试题
下列各项属于马克思主义的直接理论来源的有
女,36岁。背痛、低热1个月,偶有夜间盗汗,近1周出现双下肢乏力。X线平片提示胸6-7椎间隙变窄,并有椎旁软组织阴影。最有可能的诊断是
下列哪项不是法洛四联症的主要临床表现?()
今天的商业银行的首要经济作用在于接受活期存款和承兑该存款的()。
施工企业采购、租赁的安全防护用具、机械设备、施工机具及配件,应当具有(),并在进入施工现场前进行检查。
长期借款和短期借款核算都可能涉及的账户是()。
甲公司2014年1月10日采用融资租赁方式向乙公司租入一台大型设备。租赁合同规定:(1)该设备租赁期为6年,每年支付租金8万元;(2)或有租金为4万元;(3)履约成本为5万元;(4)承租入提供的租赁资产担保余值为7万元。甲公司2014年1月10日对该租入大
根据税收征收管理法律制度的规定,下列关于纳税人申请税务行政复议的法定期限的说法中正确的是()。
美国历史学家斯塔夫里阿诺斯指出:“正如整个世界感受到斯蒂芬孙的机车、富尔顿的汽船和加特林的机枪的影响一样,它也感受到《独立宣言》《人权和公民权宣言》和《共产党宣言》的影响。”斯塔夫里阿诺斯在这里说明的是()。
什么是自制杠杆?
最新回复
(
0
)