题目信息
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.
A:revolution, involving the large-scale introduction of enclosed fields, of new farming techniques and crops, and
B:revolution, involved the large-scale introduction of enclosed fields and of new farming techniques and crops, and
C:revolution, which involved the large-scale introduction of enclosed fields and of new farming techniques and crops, and
D:revolution involved the large-scale introduction of enclosed fields, new farming techniques and crops, and of
E:revolution that involved the large-scale introduction of enclosed fields and new farming techniques and crops, and of
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B:revolution, involved the large-scale introduction of enclosed fields and of new farming techniques and crops, and
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