首页
登录
职称英语
These days, many large city buildings are equipped with their own air-condit
These days, many large city buildings are equipped with their own air-condit
游客
2023-07-05
51
管理
问题
These days, many large city buildings are equipped with their own air-conditioning systems. These systems help keep the buildings cool, but they can also damage the environment. Since they use a lot of electricity, for instance, they contribute indirectly to global warming. In addition, the water that flows through the systems is often cooled using chemicals called chlorofluorocarbons, or CFCs, that are believed to damage the Earth’ s ozone layer. Recently, though, a system has been built in the city of Toronto, Canada, that cools buildings with little damage to the environment.
In the traditional air-conditioning systems found in most large buildings, water is pumped through the building in a continuous cycle. The water is first cooled to a temperature of 4°C in machines called chillers. It is then sent to individual units that cool the air in each room. As the water flows through the building, it gradually becomes warmer. Finally, it reaches the roof, where it is left to cool down naturally in a water tower. After that it is returned to the chillers, where the cycle begins again.
Toronto lies on the shore of Lake Ontario, one of North America’s Great Lakes, and the new system makes use of cold water taken from about 80 meters below the surface of the lake. At this depth, the water in the lake remains at 4°C all year round. This is exactly the temperature to which the water in air-conditioning systems is cooled. However, the water from the lake is not pumped directly into the air-conditioning systems. Instead, it is used to cool the water that is already inside the air-conditioning systems. After that, the lake water is added to the city’s ordinary water supply.
Enwave, the company that developed this deep-lake cooling system, says that it uses 75 percent less energy than traditional air conditioning. And since no CFCs are used, no damage can be caused to the ozone layer. Not every city is located next to a large lake, but experts believe that systems like the one being used in Toronto could be built elsewhere by using other natural sources of cold water. [br] What happens in the end to the water from Lake Ontario?
选项
A、It is used by the residents of Toronto.
B、It is returned to a place deep in the lake.
C、It is cooled down before being used again.
D、It is added to the water inside air-conditioning systems.
答案
A
解析
细节题。短文第三段最后指出After that,the lake water is added to the city’s ordinary water supply.即湖水最后应用到城市居民用水中。故选A。
转载请注明原文地址:https://tihaiku.com/zcyy/2809840.html
相关试题推荐
Thesedays,manylargecitybuildingsareequippedwiththeirownair-condit
Thesedays,manylargecitybuildingsareequippedwiththeirownair-condit
Thesedays,manylargecitybuildingsareequippedwiththeirownair-condit
Thesedays,manylargecitybuildingsareequippedwiththeirownair-condit
Thesedays,manylargecitybuildingsareequippedwiththeirownair-condit
[originaltext]TwohoursfromthetallbuildingsofManhattanandPhiladelph
[originaltext]TwohoursfromthetallbuildingsofManhattanandPhiladelph
[originaltext]TwohoursfromthetallbuildingsofManhattanandPhiladelph
Althoughmanyofusmayfeelair-conditionersbringrelieffromhot,humido
Althoughmanyofusmayfeelair-conditionersbringrelieffromhot,humido
随机试题
Manyobjectsindailyusehaveclearlybeeninfluencedbyscience,buttheir
Heisa(n)_______characterwholikeswearingaberetanddarkglasses.A、eccentri
ItwaswithgreatdelightthatIreadinyourFebruary______theletterwritten
在综合理财规划服务中,家庭资产配置的主要资产类别为()。A.不动产 B.固定收
《中华人民共和国未成年人保护法》第十三条规定,应当尊重未成年人受教育的权利,必须
调查研究法一般通过()等形式,通过对调查对象的问卷调查、访查、访谈获得资讯
某果品公司急需将一批不易存放的水果从A市运到B市销售。现有四家运输公司可供选择,
安装单位技术人员对某商场稳压泵进行调试,调试结果如下,其中不符合现行国家消防技术
以下不属于货币政策“三大法宝”的是()。 A.再贴现B.利率政策
国务院《生产安全事故报告和调查处理条例》将事故分为四个等级。在事故等级划分中考虑
最新回复
(
0
)