我国古代经济中心经历了从北方向南方逐渐转移的过程。从唐朝中晚期到五代,宋朝,江南地区的农业生产水平逐渐超过北方,下列对其原因的表述正确的是( )
--- What do you think of his idea?
--- It sounds but it just might work.