首页
登录
职称英语
In 1983, when oil process were till high in my area, I installed a ground-sour
In 1983, when oil process were till high in my area, I installed a ground-sour
游客
2023-11-23
16
管理
问题
In 1983, when oil process were till high in my area, I installed a ground-source heat pump in my brand-new, and insulated 1,600-square-foot house. It cost several thousand dollars more than comparable systems that use oil, gas, or wood, but I figured I’ d recover my higher initial expense in a few years through lower energy bills.
True, my heat pump runs on electricity-an expensive commodity where I live. But most of its energy comes from the earth: a propylene-glycol solution circulates through 1,200 feet of two-inch-diameter plastic pipe buried three feet deep in a field next to my house. As it travels, the solution absorbs heat from the surrounding soil, even when soil temperature drops below freezing.
My ground-source heat pump also offers important benefits that have nothing to do with economics.
-Minimal fire hazard-no chimney, firebox, or heating elements-only pumps, fans, and a compressor.
-Cleanliness-no combustion products, thus no chance of my heating system polluting the indoor air, leaving scummy deposits on walls and furniture.
-Reliability-solid-state electronic controls and sealed beatings almost eliminate breakdowns.
-No maintenance-no wood to cut, ashes to haul, or chimney to clean.
-Convenience-The system runs automatically, even switching from heating to air conditioning as needed. I can simply lock the door and go away for a day, week, or month.
Not only did I expect to start saving on energy costs immediately, but I also expected those savings to grow over the years as oil process continued to soar. Since I was wrong about oil prices, the big dollar savings I’ d hoped for haven’ t materialized. Nevertheless, I am satisfied, all things considered. [br] One benefit the author mentions is that the system______.
选项
A、uses no electricity
B、has a fire-safety shutoff
C、does not pollute the air in the house
D、pollute the air in house
答案
C
解析
本题询问系统的优点,文中列举了5个优点,并有记号一一标出。与原文相比可知,只有C是属于优点之—的。
转载请注明原文地址:https://tihaiku.com/zcyy/3213122.html
相关试题推荐
Fungiareimportantintheprocessofdecay,whichreturnsingredientstotheso
Themosteasiestprocessformininggoldispanning,whichinvolvesusingacirc
Psycholinguisticsisthestudyofthepsychologicalprocessesinvolvedinl
Psycholinguisticsisthestudyofthepsychologicalprocessesinvolvedinl
Psycholinguisticsisthestudyofthepsychologicalprocessesinvolvedinl
Psycholinguisticsisthestudyofthepsychologicalprocessesinvolvedinl
Psycholinguisticsisthestudyofthepsychologicalprocessesinvolvedinl
PASSAGETHREE[br]Thelastparagraphbeginswith"it’saprocess,notamoment"
Inductivereasoningistheprocessbywhichwemakeanecessarylim-【M1】___
Inductivereasoningistheprocessbywhichwemakeanecessarylim-【M1】___
随机试题
Whetherit’scurledupinthefetalposition,flatonthestomachorstretch
I’vealwaysbeenanoptimistandIsupposethatisrootedinmybeliefthat
芝加哥期货交易所(CBOT)是全球最大的农产品期货交易所,以下()品种在该交易所上市交易。A、玉米B、大豆C、天然橡胶D、豆粕A,B,D芝加哥
在我国,对侵犯著作权行为的诉讼时效为( )。A.一年 B.两年 C.三年
Thoughnotbiologicallyrelated,friends
下列何项与垂体梗死不符( )A.闭经,第二性征及生殖器萎缩 B.精力旺盛
新生儿窒息的处理,下列错误的是A、整个复苏过程必须保温 B、胎头娩出后立即清除
心交感神经节后纤维释放的神经递质是A:去甲肾上腺素 B:肾上腺素 C:乙酰胆
女性患者,59岁,诊断为糖尿病肾病、慢性肾衰竭。其必须进行血透治疗的血肌酐值为A
不属于氯丙嗪的不良反应是A.口干、便秘、心悸 B.肌肉颤动 C.低血压 D
最新回复
(
0
)