During the eighteenth century, widespread changes in agriculture, known as the agrarian revolution, involving the large-scale introduction of enclosed fields, of new farming techniques and crops, and the substitution of commercial for subsistence farming.


revolution, involving the large-scale introduction of enclosed fields, of new farming techniques and crops, and

revolution, involved the large-scale introduction of enclosed fields and of new farming techniques and crops, and

revolution, which involved the large-scale introduction of enclosed fields and of new farming techniques and crops, and

revolution involved the large-scale introduction of enclosed fields, new farming techniques and crops, and of

revolution that involved the large-scale introduction of enclosed fields and new farming techniques and crops, and of

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题目分析：

本题难度不大，只要能找准主干即可从容解题。


选项分析：

选项A：本选项使得整个句子没有谓语动词。

选项B：Correct. 本选项在语法和逻辑上均是正确的。 

选项C：本选项使得整个句子没有谓语动词。

选项D：平行对象不正确。在逻辑上，本句话的意思是：
在农业方面的改变会涉及两件事情，一件事情是大批量的去引入封闭的领域和新的农业的技术和庄稼（the large-scale introduction of enclosed fields and of new farming techniques），第二件事情是替换一些农场（the substitution of commercial for subsistence farming）。 因此，应该用并列连词introduction和substitution，介词of应该去掉，并且enclosed fields和new farming techniques之间应该由and连接。

选项E：本选项没有谓语动词。

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