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
2023-09-09
23
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:https://tihaiku.com/zcyy/2998387.html
相关试题推荐
Longbeforethefirst【B1】______arrivedinAmerican,astrangelookinganim
Longbeforethefirst【B1】______arrivedinAmerican,astrangelookinganim
Longbeforethefirst【B1】______arrivedinAmerican,astrangelookinganim
Longbeforethefirst【B1】______arrivedinAmerican,astrangelookinganim
Longbeforethefirst【B1】______arrivedinAmerican,astrangelookinganim
Longbeforethefirst【B1】______arrivedinAmerican,astrangelookinganim
AstheEnglishlanguagehaschangedatafastspeedinthiscentury,sohas
AstheEnglishlanguagehaschangedatafastspeedinthiscentury,sohas
MasstransportationrevisedthesocialandeconomicfabricoftheAmericanc
MasstransportationrevisedthesocialandeconomicfabricoftheAmericanc
随机试题
Steam________intowaterwhenittouchesacoldsurface.A、shrinksB、contractsC、c
NewLightinInternetServiceAnewinternetservice
Allthefollowingparticiples(分词)functionasanadverbEXCEPTA、Sheisanamazing
[originaltext]Apple’siPodprofoundlychangedthewaypeopleexperiencemus
A.必须无菌 B.细菌菌落总数应≤20cfu/g或≤20cfu/100cm,致
如使用管理职能分工表还不足以明确每个工作部门的管理职能,则可辅以使用( )。A
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律。 A.
我国煤气层资源十分丰富,其中大多数资源量分布在( )。A:中部、西部地区 B
根据现行国家标准《火灾自动报警系统设计规范》(GB50116),()不属于区域火
下列说法错误的是A.舌为心之苗 B.汗为心之液 C.心为神之舍 D.心其华
最新回复
(
0
)