首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
By 1800 more than a thousand steam engines were in use in the British Isles, and Britain retained a virtual monopoly on steam en
By 1800 more than a thousand steam engines were in use in the British Isles, and Britain retained a virtual monopoly on steam en
admin
2014-09-29
49
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.
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://kaotiyun.com/show/aHfO777K
0
托福(TOEFL)
相关试题推荐
Choosethecorrectanswer,A,BorC.ProjectonworkplacementHowmanyacademicorganisationsreturnedDave’squestionnaire?
Labeltheplanbelow.WriteNOMORETHANTHREEWORDSforeachanswer.PlanoftheBritishLibrary
Completethenotesbelow.WriteONEWORDONLYforeachanswer.EngineeringforsustainabledevelopmentTheGreenhou
Listentothedirectionsandmatchtheplacesinquestions11-15totheappropriateplaceamongA-Eonthemap.Cafe
Listentothedirectionsandmatchtheplacesinquestions11-15totheappropriateplaceamongA-Eonthemap.HealthCentre
Choosethecorrectletter,A,BorC.Togatherdata,theprofessorasksJane
Completethenotesbelow.WriteONEWORDONLYforeachanswer.Episodicmemory-theabilitytorecalldetails,e.g.thetimeand
Completethenotesbelow.WriteONEWORDONLYforeachanswer.Episodicmemory-theabilitytorecalldetails,e.g.thetimeand
随机试题
梁某,男,46岁,突发左侧腰痛,绞痛难忍,小便涩滞不畅,疼痛向左下部放射,B超示右输尿管结石,尿中红、白细胞增多,舌红,苔薄黄,脉略数。其治法是
“流火”发于
具有相同市场价值的房地产,其投资价值因人而异。()[2009年考题]
(2017年第72题;2012年第69题;2003年第83题)建设工程竣工验收应当具备的条件中,以下()有误。
某仓库根据生产需要存放有液氯,应将该仓库火灾危险性类别定为()。
同城或者同地区间的资金清算,主要是通过()来进行的。
有效的仲裁协议可排除法院的管辖权,只有在没有仲裁协议或者仲裁协议无效,或者当事人放弃仲裁协议的情况下,法院才可以行使管辖权,这在法律上称为或裁或审原则。()
某集团董事长说:什么叫做不简单?能够把简单的事情天天做好就是不简单。什么叫做不容易?大家公认的非常容易的事情,非常认真地做好它,就是不容易。请你结合公安干警的工作特点对此作出自己的评价。
为()国土资源部与省级国土资源部主管部门间矿业权申请审批相关文件报送方式,()管理效率,现将有关事项()如下:……依次填入上述公文括号处最合适的词语是()。
留置权:指债务人不履行到期债务,债权人可以留置已经合法占有的债务人的动产,并有权就该动产优先受偿。根据上述定义,下列关于行为人是否享有留置权的说法中正确的是()。
最新回复
(
0
)