This is so because, during the period in question, in the rural sectors poverty and the number of the poor have grown more extensively, poverty reduction costs have been higher and the poverty gap and squared poverty gap have been two or three times larger than in the urban areas.
这是因为，这一时期农村方面的贫困率和贫困人数增长比较快，减贫费用比较高，而贫困差距和平方贫困差距要比城市地区高两三倍。