首页
登录
职称英语
In 1983, when oil prices were still high in my area, I installed a ground-s
In 1983, when oil prices were still high in my area, I installed a ground-s
游客
2023-11-21
45
管理
问题
In 1983, when oil prices were still high in my area, I installed a ground-source heat pump in my brand-new, well-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 m 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 prices 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、docs not pollute the air in the house
D、requires less insulation in house walls
答案
C
解析
本题询问该系统的优点。文中列举了五个优点,并有记号一一标出。与原文相比可 知,只有C项是属于优点之一的,原文为“Cleanliness—no combustion products, thus no chance of my heating system polluting the indoor air"。
转载请注明原文地址:https://tihaiku.com/zcyy/3206949.html
相关试题推荐
Whydoesthehonestpublichavetopayhigherpriceswhentheygototheshops?
Whydoesthehonestpublichavetopayhigherpriceswhentheygototheshops?
In1983,whenoilpriceswerestillhighinmyarea,Iinstalledaground-s
In1983,whenoilpriceswerestillhighinmyarea,Iinstalledaground-s
In1983,whenoilpriceswerestillhighinmyarea,Iinstalledaground-s
Peopletendtocomplainalotaboutthe______risingpricesrecently.A、steeply
We’vejustinstalledtwoair-conditionersinourapartment,______shouldmakeg
Withprices______somuch,it’shardforthecompanytoplanabudget.A、fluctua
In1983,whenoilprocessweretillhighinmyarea,Iinstalledaground-sou
In1983,whenoilprocessweretillhighinmyarea,Iinstalledaground-sou
随机试题
ComparingtheTOEFL,IELTS,andTOEICTestsThreepopularstandardizedtest
Morethanfortythousandreaderstolduswhattheylookedforinclosefrie
下列各种先心病的体征与上述哪一组符合? A.胸骨左缘第2~4肋间可听到Ⅱ~Ⅲ级
根据《商业银行房地产贷款风险管理指引》规定,房地产开发企业开发项目的资本金比例不
某地下连续墙支护结构,其渗流流网如图1-12所示。已知土的孔隙比e=0.92
当事人黄某与赵某原为夫妻,离婚后发生财产纠纷。黄某在内地申请认可和执行香港特别行
按照与检查资料之间的相互关系,纳税检查的基本方法可以分为()。A.顺查法与逆查
某个体工商户发生的下列支出中,允许在个人所得税税前扣除的是()。A.家庭生活用
某工业企业设有机修和运输两个辅助生产车间,其本月发生的费用及提供劳务量的情况如下
某技术方案的现金流量如下表,若基准收益率为10%,则该方案的财务净现值是( )万
最新回复
(
0
)