The underlined word "this" in the second paragraph refers to the change that_________．

A． each nail could be taken the place of by every other nail

B． each nail was exactly like every other nail

C． producing tasks became smaller and smaller

D． goods could be mass produced

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参考答案

答案解析

理解题。在条件句中，this指下文“goods could be mass
Produced”(货物大批生产)。所以此题选择D

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1 According to the writer, highly skilled workers_________．

A． completely disappeared with the coming of the factory system

B． were dismissed by the boss

C． were unable to produce goods of high standard

D． were unable to produce fine goods at that same speed as machines

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2 According to the passage, what did the farmers have to do with the coming of mechaniza-tion of agriculture?

A． Many of them had to leave their farmland for industrial center

B． They stuck to their farm wor

C． They refused to use machine

D． They did their best to learn how to use the machine

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3 根据下列文章，回答题。

In 1990, the number of jobs having nothing to do with computers in the United States will be reduced to__________．
[A] 79 million
[B] 100 million　　
[C] 30 million
[D] 70 million

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