题目解析:
题干文章指出,珠江三角洲的农业“不能被称为自给农业”,因为农民?定位至However agriculture in the region could not be called subsistence agriculture, for many nonfood commercial crops were grown and exchanged in markets that dotted the countryside. 因为许多非粮食商业作物是在遍布农村的市场上种植和交换的。故B正确;A错 降低家庭所需,没提到;C错,outside在自己以外的地方耕种;D错,原文Peasant farmers produced on their own plots much of the food the family consumed. 农民在自己的土地上生产家庭消费的大部分食物