首页
登录
职称英语
Although many of us may feel air-conditioners bring relief from hot, humid o
Although many of us may feel air-conditioners bring relief from hot, humid o
游客
2023-06-29
43
管理
问题
Although many of us may feel air-conditioners bring relief from hot, humid or polluted outside air, they pose many potential health hazards. Much research has looked at how the movement of air inside a closed environment—such as an office building—can spread disease or expose people in the building to harmful chemicals.
One of the more widely publicized dangers is that of Legionnaire’s disease, which was first recognized in the 1970s. This was found to have affected people in buildings with air-conditioning systems in which warm air pumped out of the system’s cooling towers was somehow sucked back into the air intake (通风口), in most cases due to poor design. The warm air, filled with bacteria, was combined with cooled, conditioned air and was then circulated around various parts of the building. Studies showed that even people outside such buildings were at risk if they walked past air exhaust pipes.
Large air-conditioning systems add water to the air they circulate by means of humidifiers (湿度调节器 ). In older systems, the water used for this process is kept in special reservoirs, the bottoms of which provide breeding grounds for bacteria which can find their way into the ventilation (通风) system. The risk to human health from this situation has been highlighted by the fact that the immune systems (免疫系统) of approximately half of workers in air-conditioned office buildings have developed the ability to fight off the organisms found at the bottom of system reservoirs. But chemicals called "biocides" are added to reservoirs to make them germ-free, and they are dangerous in their own right in sufficient quantities, as they often contain compounds strongly linked to cancers.
Finally, it should be pointed out that the artificial climatic environment created by air-conditioners can also affect us. In a natural environment, whether indoor or outdoor, there are small variations in temperature and humidity. Indeed, the human body has long been accustomed to these normal changes. In an air-conditioned living or work environment, however, body temperatures remain well under 37℃, our normal temperature. This leads to a weakened immune system and thus greater exposure to diseases such as colds and flu. [br] What do we know about Legionnaire’s disease from the passage?
选项
A、It was the most widely concerned office hazard.
B、It can affect people both inside and outside the building.
C、It happens only in air-conditioned office buildings.
D、It does not develop in well-designed buildings.
答案
B
解析
事实细节题。本题主要考查复合句的理解。第2段最后一句表明B是正确选项。选项A中的most和C中的only都太绝对了,文中并未对选项A和C中的相关说法加以这样的限定。选项D也太绝对了,第2段第3句只是说到“大多数情况下是因为空调设计欠佳所致”,并不是说所有设计良好的大厦就不会发生这种情况。
转载请注明原文地址:https://tihaiku.com/zcyy/2792177.html
相关试题推荐
Mostpeoplewouldagreethat,althoughourageexceedsallpreviousagesin
Mostpeoplewouldagreethat,althoughourageexceedsallpreviousagesin
Mostpeoplewouldagreethat,althoughourageexceedsallpreviousagesin
Althoughmanyofusmayfeelair-conditionersbringrelieffromhot,humido
Althoughmanyofusmayfeelair-conditionersbringrelieffromhot,humido
Althoughmanyofusmayfeelair-conditionersbringrelieffromhot,humido
Althoughmanyofusmayfeelair-conditionersbringrelieffromhot,humido
Althougheachbabyhasanindividualscheduleofdevelopment,generalpatter
Althougheachbabyhasanindividualscheduleofdevelopment,generalpatter
Althougheachbabyhasanindividualscheduleofdevelopment,generalpatter
随机试题
SimilaritiesandDifferencesbetweenPublicSpeakingandConversationⅠB
PrivateFile-SharingNetworksMuffinManhasmoreth
水泥混凝土面层作为路面工程的主要分项工程,在原材料的检验、混凝土的强度检验与评定
舌淡白胖嫩,舌边有齿痕,属A.脾虚湿侵 B.气虚 C.湿热痰浊 D.阳虚水
国别风险管理体系包括()等基本要素。 ①董事会和高级管理层的有效监控 ②
消防给水系统架空管道外应刷红色油漆或涂红色环圈标志,并应注明管道名称和水流方向
张玉有严重的恐高症,害怕乘电梯、坐飞机甚至爬山等,社会工作者针对这一情况,根据张
( )不受企业所有制性质、经济效益和支付能力的影响。A.基本福利 B.补充保
工程计价的依据不包括( )。A.设计文件 B.概算定额 C.政府规定的税费
(2019年真题)根据《绿色施工导则》,关于非传统水源利用的说法,正确的有( )
最新回复
(
0
)