首页
登录
职称英语
In 1983, when oil process were till high in my area, I installed a ground-sou
In 1983, when oil process were till high in my area, I installed a ground-sou
游客
2024-10-22
31
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 bearings 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、pollutes the air in house
答案
C
解析
细节理解题。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是属于优点之一的。
转载请注明原文地址:https://tihaiku.com/zcyy/3812234.html
相关试题推荐
Communicationistheprocessof______amessagefromasourcetoanaudiencevi
Thediscoveryofthehalftoneprocessinphotographyin1881madeit______phot
Theprocessbymeansofwhichhumanbeingscanarbitrarilymakecertainthin
Theprocessbymeansofwhichhumanbeingscanarbitrarilymakecertainthin
Theprocessbymeansofwhichhumanbeingscanarbitrarilymakecertainthin
Theprocessbymeansofwhichhumanbeingscanarbitrarilymakecertainthin
Theprocessbymeansofwhichhumanbeingscanarbitrarilymakecertainthin
Theprocessbymeansofwhichhumanbeingscanarbitrarilymakecertainthin
Theprocessbymeansofwhichhumanbeingscanarbitrarilymakecertainthin
Theprocessbymeansofwhichhumanbeingscanarbitrarilymakecertainthin
随机试题
Intoday’sjobmarketplace,youcanexpecttheinterviewtobea"structured
Forcenturies,immigrantshavecometoAmericaseekingthepromiseoflife,
A、Whenthey’reunabletocontroltheperson’sbehavior.B、Whenthecausesofthe
反映用水量变化情况的日变化系数,是指哪项?( )A.一年中最高日用水量与平均日
触诊肠管或索条状包块最适用()A.双手触诊法 B.深部滑行触诊法 C.
工作人员在现场工作过程中,若因本身工作所引起异常情况或断路器(开关)跳闸、阀闭锁
A.2 B.2.5 C.3 D.4
某市属投资公司投资的大型会展中心项目,基础底面标高-15.8m,首层建筑面积98
下列关于货币现值和终值的说法中,错误的是()A:现值是以后年份收到或付出资金的现
患者,男性,24岁。上唇部肿胀疼痛3天,伴发热。检查38.5℃,上唇肿胀明显、紫
最新回复
(
0
)