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
2024-01-31
52
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] The fact that about half of workers developed the ability to fight off the bacteria may_____.
选项
A、relieve people’s worry about the danger caused by the bacteria
B、help people find an effective way to get rid of the bacteria
C、reflect the serious danger brought by the bacteria
D、cause serious disease such as cancers to people
答案
C
解析
事实细节题。本题考查被动语态长句的理解。在第3段第3句中,关键词是highlight,选项C是对原句主谓部分的近义替换。选项A和B在文中皆无提及,选项D是过度使用生物杀灭剂的后果,与本题干的情况无关。
转载请注明原文地址:https://tihaiku.com/zcyy/3408445.html
相关试题推荐
Althoughmanyofusmayfeelair-conditionersbringrelieffromhot,humido
Althoughmanyofusmayfeelair-conditionersbringrelieffromhot,humido
Althoughmanyofusmayfeelair-conditionersbringrelieffromhot,humido
Althoughmanyofusmayfeelair-conditionersbringrelieffromhot,humido
Althoughmanyofusmayfeelair-conditionersbringrelieffromhot,humido
Althoughmanyofusmayfeelair-conditionersbringrelieffromhot,humido
Althoughmanyofusmayfeelair-conditionersbringrelieffromhot,humido
Althougheachbabyhasanindividualscheduleofdevelopment,generalpatter
Althougheachbabyhasanindividualscheduleofdevelopment,generalpatter
Althougheachbabyhasanindividualscheduleofdevelopment,generalpatter
随机试题
[originaltext]W:Isthistheveryroomadvertisedbythetravelagency?Thespa
最常见的肾细胞癌类型是()A.集合管癌 B.乳头状癌 C.嫌色细胞癌
()是指在建筑的外墙上设置的全部敞开的楼梯。A.敞开楼梯间 B.封闭楼梯
有权在法律、行政法规规定的给予行政处罚的行为、种类和幅度的范围内作出具体规定的机
GB18466-2001《医疗机构污水排放要求》中规定医疗机构污水处理构筑物的设
颞骨为一复合骨块,参与其组成有误的是( )A.鳞部 B.鼓部 C.枕部 D
突然大出血时脉象多见A.举之有余,按之不足 B.浮大无根,按之消失 C.浮大
证券公司为证券资产管理客户开立的证券账户,应当自开户之日起()个交易日内报
某市场的大米售价为每千克4元,需求量250万千克,若每千克大米的售价降到3.6元
为了防止屋面防水层出现龟裂现象,构造上应采取()。A.设找平层 B.在找
最新回复
(
0
)