According to the passage, Adam Smith was the first person to ______. Adam Smith saw that the division of labor ______.

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问题 According to the passage, Adam Smith was the first person to ______.
Adam Smith saw that the division of labor ______.

选项 A、enabled each worker to design pins more quickly
B、increased the possible output per worker
C、increased the number of people employed in factories
D、improved the quality of pins produced

答案B

解析 本题考查的是考生对文章具体细节的把握及对全文的概括总结能力。答案对应于文章的第三段,通过数据史密斯说明了劳动分工极大地提高了生产效率。
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