首页
登录
职称英语
By the mid-nineteenth century, the term "icebox" had entered the American la
By the mid-nineteenth century, the term "icebox" had entered the American la
游客
2024-06-01
44
管理
问题
By the mid-nineteenth century, the term "icebox" had entered the American language, but ice was still only beginning to affect the diet of ordinary citizens in the United States. The ice trade grew with the growth of cities. Ice was used in hotels, taverns(酒馆), and hospitals, and by some forward-looking city dealers in fresh meat, fresh fish, and butter. After the Civil War(1861-1865), as ice was used to refrigerate freight cars, it also came into household use. Even before 1880, half of the ice sold in New York, Philadelphia, and Baltimore, and one-third of that sold in Boston and Chicago, went to families for their own use. This had become possible because a new household convenience, the icebox, a precursor of the modern fridge, had been invented.
Making an efficient icebox was not as easy as we might now suppose. In the early nineteenth century, the knowledge of the physics of heat, which was essential to a science of refrigeration, was rudimentary(未发展的). The commonsense notion that the best icebox was one that prevented the ice from melting was of course mistaken, for it was the melting of the ice that performed the cooling. Nevertheless, early efforts to economize ice included wrapping up the ice in blankets, which kept the ice from doing its job. Not until near the end of the nineteenth century did inventors achieve the delicate balance of insulation and circulation needed for an efficient icebox.
But as early as 1803, and ingenious Maryland farmer, Thomas Moore, had been on the right track. He owned a farm about twenty miles outside the city of Washington, for which the village of Georgetown was the market center. When he used an icebox of his own design to transport his butter to market, he found that customers would pass up the rapidly melting stuff in the tubs of his competitors to pay a premium price for his butter, still fresh and hard in neat, one-pound bricks. One advantage of his icebox, Moore explained, was that farmers would no longer have to travel to market at night in order to keep their produce cool. [br] Where was ice used after the Civil War?
选项
答案
In refrigerating freight cars and households.
解析
题目询问在内战后冰被用在哪些地方。根据题干关键词Civil War可以定位至文章第一段第四句话,由...ice was used to refrigerate freight cars...into household use可知问题的答案。
转载请注明原文地址:http://tihaiku.com/zcyy/3614653.html
相关试题推荐
Itwasnotuntiltheendofthe20thcenturythat__________________(我们才重视环境问题).
Longbeforethefirst【B1】______arrivedinAmerican,astrangelookinganim
Longbeforethefirst【B1】______arrivedinAmerican,astrangelookinganim
Longbeforethefirst【B1】______arrivedinAmerican,astrangelookinganim
Longbeforethefirst【B1】______arrivedinAmerican,astrangelookinganim
Longbeforethefirst【B1】______arrivedinAmerican,astrangelookinganim
AstheEnglishlanguagehaschangedatafastspeedinthiscentury,sohas
MasstransportationrevisedthesocialandeconomicfabricoftheAmericanc
MasstransportationrevisedthesocialandeconomicfabricoftheAmericanc
MasstransportationrevisedthesocialandeconomicfabricoftheAmericanc
随机试题
Thewine______alittlebitterthistime.A、tastesB、soundsC、looksD、feelsA本题考
[originaltext]In1939twobrothers,MacandDickMcDonald,startedadrive-
Ifyouweretobeginanewjobtomorrow,youwouldbringwithyousomebasicstr
AccordingtoColombianofficials,whowasresponsibleforthemassacre?[br][o
(1)Thegovernmenthaslauncheditsconsultationonbettermeasuresofchild
在以纵轴代表工资率、横轴代表劳动力供给小时数的坐标系中,代表欠发达国家存在无限劳
单元体处于纯剪应力状态,其主应力特点为: A.σ1=σ2>0,σ3=0 B
风湿性心脏瓣膜病主动脉瓣狭窄最主要的特征是A.心脏显著向左下扩大 B.主动脉瓣
符合肝细胞性黄疸检验特点的是( )。A.尿胆素原减少 B.尿胆红素阳性 C
下列关于变动成本的叙述,正确的有()。A.变动成本可以分为酌量性变动成本和
最新回复
(
0
)