单选题：According to the passage，what did the farmers have to do wi

题目分类：公共英语三级
题目类型：单选题
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题目内容：

According to the passage，what did the farmers have to do with the coming of mechanization of agriculture? A．Many of them had to leave their farmland for industrial centers．
B．They stuck to their farm work．
C．They refused to use machines．
D．They did their best to leam how to use tlle machines．

参考答案：

答案解析：

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