首页
登录
职称英语
[originaltext] Solar water heating is used worldwide. The device we are abou
[originaltext] Solar water heating is used worldwide. The device we are abou
游客
2024-01-28
18
管理
问题
Solar water heating is used worldwide. The device we are about to describe was developed in Afghanistan more than 30 years ago. It can heat 70 litres of water to 60 degrees Celsius. It can do this between sunrise and noon on a clear day with an average outside temperature of 32 degrees Celsius.
The solar water heater has two parts. One part is the solar collector. This is made of metal sheets. The collector is placed in contact with the water. There are several kinds of metal sheets that can be used for the collector. Metal sheets that have raised sections will work very well. Once the water is heated, it is kept hot with special material. This helps the water stay warm for a long time. The second part of the solar water heater is the storage tank. Two rubber pipes are attached to the storage tank. One pipe lets water flow into the system. The other lets water flow out. When the water heater is working correctly, water will flow from the storage tank to the collector and back again. You can use the hot water at the top of the tank for washing and cleaning.
You can change the flow of water so that the temperature is hot or warm as desired. This solar water heater is easy to build and operate. It will last about two years before the rubber pipes need to be replaced. However, it will heat water only on sunny days.
16. In which country was solar water heating developed?
17. What is a solar water heater composed of?
18. How can people change the temperature of water from a solar water heater?
选项
A、The United States.
B、DPRK.
C、Afghanistan.
D、Uganda.
答案
C
解析
细节题。文章开头提到,早在30多年前Afghanistan就开始研制thedevice,联系上句可知the device指的就是solar water heating,故答案为C)。
转载请注明原文地址:https://tihaiku.com/zcyy/3400732.html
相关试题推荐
[originaltext][23]AnewbookbytwoprofessorsatPennsylvaniaStateUniver
[originaltext][23]AnewbookbytwoprofessorsatPennsylvaniaStateUniver
[originaltext]Fromthebeginningofhumanhistory,[21]peoplehaveusedoil
[originaltext]Asmoreandmorepeoplelosetheirjobs,nowisperhapsthet
[originaltext]Asmoreandmorepeoplelosetheirjobs,nowisperhapsthet
[originaltext]W:NowI’vegotyourbackground,let’stalkaboutthemanagement
[originaltext]W:NowI’vegotyourbackground,let’stalkaboutthemanagement
[originaltext]M:Hi,Shelley.Comeonin.W:Uh,yeah,Istoppedbytoseeify
[originaltext]M:Hi,Shelley.Comeonin.W:Uh,yeah,Istoppedbytoseeify
[originaltext]M:Hi,Shelley.Comeonin.W:Uh,yeah,Istoppedbytoseeify
随机试题
Therewasatimewhenonlygovernmentscouldcreatemoney,andasMikeRowbo
Ifeveryouarecalled【C1】______tointroduceaspeaker;itwouldbewellfor
[audioFiles]2015m7s/audio_ezfj_013_20153[/audioFiles]
论述社会工作介入中小学生校园欺凌问题的优势及策略。
B
患者,女,39岁因右下牙疼3天就诊,检查见右下第二磨牙颌大面积龋坏,探(+),冷
无负荷单体试运转规程由()负责编制,并负责试运转的组织、指挥和操作。A、施工单
继发性肺结核的好发部位是A、左肺上叶 B、左肺下叶 C、右肺上叶 D、右肺
下列措施中能够拉动内需的是( )。A、提高准备金率 B、提高利率 C、降低贴
复合会计分录是指()。A、一借一贷的会计分录 B、一借多贷的会计分录 C、多
最新回复
(
0
)