首页
登录
职称英语
Most people are aware that outdoor air pollution can damage their health, bu
Most people are aware that outdoor air pollution can damage their health, bu
游客
2023-08-21
65
管理
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】______heal the ffects.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 symptom soccur.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. [br] 【B7】
选项
答案
depends oil
解析
听录音时若没听清楚depends后的s,可以根据句子结构判断。该句的主语中心词是likelihood,因此谓语用第三人称单数。
转载请注明原文地址:http://tihaiku.com/zcyy/2946034.html
相关试题推荐
[originaltext]Thegrowingphenomenonofpeoplewhoaremakingcheaporfree
GrayingPopulationStaysinthePinkA)Elderlypeoplear
GrayingPopulationStaysinthePinkA)Elderlypeoplear
GrayingPopulationStaysinthePinkA)Elderlypeoplear
GrayingPopulationStaysinthePinkA)Elderlypeoplear
Theproblemofhowhealth-careresourcesshouldbeallocatedorapportioned,
Theproblemofhowhealth-careresourcesshouldbeallocatedorapportioned,
Theproblemofhowhealth-careresourcesshouldbeallocatedorapportioned,
Theproblemofhowhealth-careresourcesshouldbeallocatedorapportioned,
Heavierpeoplearemorelikelytobekilledorseriouslyinjuredincaracci
随机试题
EthicsOfficeBacksInteriorOfficial民族
Thelasttwotornadoseasonshavebeenthedeadliestinadecade,with206
Alicecouldn’t____________(集中精力学习)whilethefamilywerewatchingTV.concentrat
利润表反映了企业一定会计期间的经营成果;现金流量表反映了一定会计期间现金和现金等
A.丙戊酸钠B.苯妥英钠C.硝西泮D.地西泮E.卡马西平二苯并氮杂类抗癫痫药
神经纤维动作电位上升支形成主要是由于A:Na+内流 B:K+外流 C:K+内
为增加使用面积,在现有一个单层单跨建筑内加建一个全钢结构夹层,该夹层与原建筑结构
“虚”的含义最宜是A.虚邪中人 B.邪气不盛 C.正气亏虚 D.气血亏虚
以下不属于总图运输方案比选内容的是()。A.环保方案比选 B.总图布置费
产后子宫颈口完全恢复到正常形态A.产后3~4日B.产后1周C.产后10天D.产后
最新回复
(
0
)