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
专升本
On the old-time farm in America there were chickens and turkeys. There were also cows, pigs, and other livestock. But there were
On the old-time farm in America there were chickens and turkeys. There were also cows, pigs, and other livestock. But there were
admin
2007-12-11
68
问题
On the old-time farm in America there were chickens and turkeys. There were also cows, pigs, and other livestock. But there were very few machines. Most of the work was done by the entire farm family with the help of a "hired" man. Sometimes extra labourers were needed in busy seasons. Horses provided 79 percent of the power used, human labor 15 percent, and machines only 6 percent.
Today all that has changed. On many modern farms machines now supply 96 percent of the power, human labor 3 percent, and horses 1 percent. Modern farms are enterprising businesses which keep only the livestock that can pay its way. The children go to school by bus every morning, the parents work on the farm or in the house, and hired help is seldom needed. Their work has been replaced by a whole army of farm machines.
Farmers in the machine age also use the new fertilizers, new sprays, new feeds, new hybrid seeds, and other helps developed by farm sciences. As a result the farmers are able to produce more food with less labour. This means fewer but larger farms and fewer but more prosperous farmers.
From the first paragraph, we learn that in old days the most important farming power was______.
选项
A、livestock
B、farmers
C、machines
D、extra labourers
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/CBLC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
设函数fˊ(2χ-1)=eχ,则f(χ)=()
一商店按批发价3元购进一批商品零售,若零售价定为每件5元,估计可售出100件,若每件售价降低0.2元,则可多售出20件.若需求函数(即售出量与价格间关系)是一次函数,请问该店应批发进多少件每件售价多少才可获最大利润,量大利润是多少?
Inthispart,youareallowed30minutestowriteacompositiononthetopic"Advertisements".Youshouldwriteatleast120wor
Acontractisanagreementbetweentwoormorepeople【71】onepersonagreestodosomethingbyaspecifieddateinreturnfors
Therearetwokindsofmemory:short-termandlong-term.Informationinlongtermmemorycanberememberedatalatertimewheni
Maxhasno______(appreciate)ofthefinethingsinlife.
Todayapilotistotallydependentonwhattheairtrafficcontrolleronthegroundtellshim.Hecan’tseeenoughtobesafe.F
Everheardtheoneaboutthedoctorwhogavehispatientsixmonthstolive?Whenthemancouldn’tpayhisbill,thedoctorgave
Theatmosphereandoceansarenottheonlypartsoftheenvironmentbeingdamaged.Rainforestsarebeingquicklydestroyedasw
Agloomyafternoonsawmetakingmyroutinepaththroughthatconstructionsite.Forthewalker’sconvenience,asetofstonest
随机试题
制定行政处罚裁量基准,应当符合下列要求()
固定修复体戴用一段时间后出现过敏性疼痛,其原因除了
A.血热B.气虚C.血虚D.血瘀E.精血亏虚月经过多,色淡质稀是因()
运输药用阿片时,办理运输手续必须凭危重病人到指定医疗单位开麻醉药品时持有
手术人员穿无菌手术衣和戴无菌手套后,其灭菌区应是:
设立普通合伙企业的条件有()。
班级管理的根本目的是()
从领导的性质来看,领导具有自然属性和()的双重属性。
并非有的运动员有时竞技状态不好。如果上述断定为真,则以下哪项必假?()
A、Themoviewasalreadyover,B、Somepeoplewerewatchingthemovie.C、Themanhadbetternotcomeovertowatchthemovie.D、Th
最新回复
(
0
)