首页
登录
职称英语
By 1800 more than a thousand steam engines were in use in the British Isles,
By 1800 more than a thousand steam engines were in use in the British Isles,
游客
2024-01-03
34
管理
问题
By 1800 more than a thousand steam engines were in use in the British Isles, and Britain
retained
a virtual monopoly on steam engine production until the 1830s. Steam power did not merely spin cotton and roll iron; early in the new century, it also multiplied ten times over the amount of paper that a single worker could produce in a day. At the same time, operators of the first printing presses run by steam rather than by hand found it possible to produce a thousand pages in an hour rather than thirty. Steam also promised to eliminate a transportation problem not fully solved by either canal boats or turnpikes. Boats could carry heavy weights, but canals could not cross hilly terrain; turnpikes could cross the hills, but the roadbeds could not stand up under great weights. These problems needed still another solution, and the ingredients for it lay close at hand. In some industrial regions, heavily laden wagons, with flanged wheels, were being hauled by horses along metal rails; and the stationary steam engine was puffing in the factory and mine. Another generation passed before inventors succeeded in combining these ingredients, by putting the engine on wheels and the wheels on the rails, so as to provide a machine to take the place of the horse. Thus the railroad age sprang from what had already happened in the eighteenth century. [br] The word "
retained
" in the passage is closest in meaning to
选项
A、gained
B、established
C、profited from
D、maintained
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3329984.html
相关试题推荐
Thetraditionofthebowheadwhalehuntbackathousandyearsandisavitalpar
By1800morethanathousandsteamengineswereinuseintheBritishIsles,
By1800morethanathousandsteamengineswereinuseintheBritishIsles,
AgriculturalSocietyinEighteenth-CenturyBritishAmericaP1:Throughouttheco
AgriculturalSocietyinEighteenth-CenturyBritishAmericaP1:Throughouttheco
AgriculturalSocietyinEighteenth-CenturyBritishAmericaP1:Throughouttheco
AgriculturalSocietyinEighteenth-CenturyBritishAmericaP1:Throughouttheco
AgriculturalSocietyinEighteenth-CenturyBritishAmericaP1:Throughouttheco
AgriculturalSocietyinEighteenth-CenturyBritishAmericaP1:Throughouttheco
AgriculturalSocietyinEighteenth-CenturyBritishAmericaP1:Throughouttheco
随机试题
WereitnotfortheaidoftheUNESCO,___________________(偏远地区的贫困儿童是上不起学的).p
目赤肿痛,羞明多泪者,多是因为:A.阴虚火旺 B.肝火上炎 C.肝阳上亢
女性,38岁,左上肺占位,行左上肺叶切除术。术后病理报告不可能出现的诊断是A.小
上课时有同学说你的理论不对你怎么做?
A.晕动病B.重症肌无力C.散瞳检查眼底D.青光眼E.胃、十二指肠溃疡丙胺太林可
在MMPI-2中,新增的中文版低频量表是()。单选A.ICH B.VRI
并购完成后,并购方与目标方之间可能具有的结果是()。A、吸收合并 B
(2014年真题)甲公司2×11年度至2×13年度对乙公司债券投资业务的
按现行会计制度及有关规定,下列会计报表中属于静态会计报表的是()。A、资产负债
经济合作与发展组织(OECD)日前公布的首份中国环境政策报告书披露,中国是全球第
最新回复
(
0
)