Innovation, the effective recipe of progress, has always cost people their j

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问题 Innovation, the effective recipe of progress, has always cost people their jobs. Over the past 30 years the digital revolution has【C1】______many of the mid-skill jobs that supported 20th-century middle-class life. Typists, ticket agents, bank tellers and many production-line jobs have been【C2】______with.
For those who believe that technological progress has made the world a better place, such change is a natural part of rising【C3】______. Although innovation kills some jobs, it creates new and better ones, as a more productive society becomes richer and its wealthier inhabitants【C4】______more goods and services. A hundred years ago one in three American workers was employed on a farm. Today less than 2% of them produce far more food. The millions freed from the land were not delivered to joblessness, but found better-paid work as the economy grew more【C5】______. Today the pool of secretaries has【C6】______, but there are ever more computer programmers and web designers.
Optimism remains the right starting-point, but for workers the dislocating(扰乱的)effects of technology may make themselves evident faster than its benefit. Even if new jobs and【C7】______products emerge, in the short term income gaps will widen, causing huge social dislocation and perhaps even changing politics. Technology’s impact will feel like a tornado, hitting the rich world first, but【C8】______sweeping through poorer countries too. Worse, it seems likely that this wave of technological【C9】______to the job market has only just started. From driverless cars to clever household devices, innovations that already exist could destroy jobs that have【C10】______been untouched.
A)prosperity E)partition I)conversely M)demand
B)dispensed F)eventually J)shrunk N)complicated
C)inquire G)sophisticated K)fragile O)hitherto
D)wonderful H)displaced L)disruption [br] 【C1】

选项

答案 H

解析此处需填入谓语动词，由空格前的has可知是过去分词形式。上句说到创新总是以人们失去工作为代价，由cost people their jobs可知本句应表示数字革命对中等技能工作带来了负面的影响，displaced“取代”符合语意逻辑。

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Innovation, the effective recipe of progress, has always cost people their j

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