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
2024-04-19
9
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] 【B2】
选项
答案
occasionally
解析
若去除此空,并不影响句子大意,故推断空格处应填入虚词。occasionally意为“有时候”,拼写时要注意双写c和l。
转载请注明原文地址:https://tihaiku.com/zcyy/3562293.html
相关试题推荐
Mostpeopleareawarethatoutdoorairpollutioncandamagetheirhealth,bu
Mostpeopleareawarethatoutdoorairpollutioncandamagetheirhealth,bu
Mostpeopleareawarethatoutdoorairpollutioncandamagetheirhealth,bu
Mostpeopleareawarethatoutdoorairpollutioncandamagetheirhealth,bu
Mostpeopleareawarethatoutdoorairpollutioncandamagetheirhealth,bu
Mostpeopleareawarethatoutdoorairpollutioncandamagetheirhealth,bu
Mostpeopledon’twakeupinthemorning,combtheirhair,andwalkoutthe
Mostpeopledon’twakeupinthemorning,combtheirhair,andwalkoutthe
Mostpeopledon’twakeupinthemorning,combtheirhair,andwalkoutthe
Mostpeopledon’twakeupinthemorning,combtheirhair,andwalkoutthe
随机试题
[originaltext]Inmanycountries,exchangingbusinesscardsisanimportant
[originaltext]Televisionnowplayssuchanimportantpartinsomanypeople
A.静定结构 B.1次超静定结构 C.2次超静定结构 D.3次超静定结构
关于输卵管妊娠,下列说法哪项是错误的A.以壶腹部多见 B.峡部妊娠比壶腹部妊娠
法洛四联症心脏杂音响度主要取决于A、左、右室之间压力差 B、肺动脉瓣狭窄程度
经营机构邀请外部专家参与证券投资咨询服务以外咨询服务,应当符合( )要求。
强心苷疗效最好的适应证是A:肺源性心脏病引起的心力衰竭 B:严重心肌损伤引起的
下列关于急性骨髓炎的叙述正确的是A.常见于青壮年人 B.多发生于长骨干骺端
“财务费用”总账所属明细分类账适合采用()。A.多栏式明细帐 B.数量金额
投资项目决策分析与评价的基本要求包括贯彻落实科学发展观、资料数据准确可靠和()
最新回复
(
0
)