_______ devised the narrow-strip, three-field farming system which continued until the agricultural revolution in the 18th century.
【正确答案】：The Anglo-Saxons
【题目解析】：The Anglo-Saxons devised the narrow-strip, three-field farming system which continued until the agricultural revolution in the 18th century. 参见教材P98。
掌握“The Anglo－Saxons(446－871)”知识点。
