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
考研
Successful innovations have driven many older technologies to extinction and have resulted in higher productivity, greater consu
Successful innovations have driven many older technologies to extinction and have resulted in higher productivity, greater consu
admin
2011-01-17
34
问题
Successful innovations have driven many older technologies to extinction and have resulted in higher productivity, greater consumption of energy, increased demand for raw materials, accelerated flow of materials through the economy and increased quantities of metals and other substances in use per person. The history of industrial development is full of examples.
In 1870, homes and mules were the prime source of power on U.S. farms. One horse or many decades. At that time, had a national commission been asked to forecast the horse and mule population for 1970, its answer probably would have depended on whether its consultants were of an economic mm of mind. Had they been "economists", they would have recognized that the power of steam had already been harnessed to industry and to land and ocean transport. They would have recognized further that would be only a matter of time before steam would be the prime source of power on the farm. It would have been difficult for them to avoid the conclusion that the horse and mule population would decline rapidly.
It can be inferred from the passage that by 1870 ______.
选项
A、the steam engine had been invented
B、a national commission on agriculture had been established
C、the U. S. horse population was about 10 million
D、technology began to be more economical
答案
A
解析
根据第二段开始部分,1870年时马和骡子为美国农场的主要劳动力,尽管那时已出现蒸汽机。其他选项的信息有误或没有在短文中涉及。
转载请注明原文地址:https://kaotiyun.com/show/EdYi777K
本试题收录于:
GCT工程硕士(英语)题库专业硕士分类
0
GCT工程硕士(英语)
专业硕士
相关试题推荐
A:Mycardoesn’twork.Canyourepareit?B:Ofcourse,______
On-linenewsandmagazinestoriesare______.Thephrase"physicalproducts"inthesecondparagraphmeans______.
TheserviceinthefirstadvertisementisdirectedtothefollowingEXCEPT______.ServicesprovidedbyGoldenTouchConstructi
A:______Madam?B:I’dliketoseesomebedlinen,please.
Whyshouldyoustillworryaboutprotectingyourpossessionswhenyouhaveinsuredthem?Whatshouldatenantdoifheisworde
Sportisnotonlyphysicallychallenging,butitcanalsobementallychallenging.Criticismfromcoaches,parents,andotherte
Afewcommonmisconceptions.Beautyisonlyskin-deep.One’sphysicalassetsandliabilitiesdon’tcountallthatmuchinamana
Manynewcomerscomplainoftherapid______oflifeinHongKong.
InDisneyland,everyyear,some800,000plantsarereplacedbecauseDisneyrefusedto______signsaskinghis"guests"nottoste
随机试题
在点燃煤气灯或酒精喷灯时,第一步应该是()。
_______使消息同时具有身份可验证性和保密性。
矽肺与混合性尘肺比较,少见的X线征象的是:
引起产褥感染最常见的病菌是
下列哪项不是病人的权利
国债是一个特殊的债务范畴。它与私愤的本质区别在于发行的()或担保物不同。
平面内有4个红点、6个蓝点,其中只有一个红点和两个蓝点共线,其余任何三点不共线,过这10个点中任意两点确定的直线中,过红点的直线有()条。
推动社会发展的根本动力是()
•Lookatthelistbelow.ItshowsthecontentsofaWeb.•Forquestions6-10,decidewhichpart(A-H)eachpersonontheopp
A、Inarestaurant.B、Inabar.C、Onajet.D、Onanoceanliner.C此题必须逐—辨析,不能急于下结论。听到"beerandacake",也许A、B为正确选项。但接着听到的信息"theca
最新回复
(
0
)