A

A

答案

根据所学知识,填充下列相关知识。

1)宋代人口数量突破了_____________,劳动力大量增加。

2)随着优良水稻品种_____________的种植面积迅速扩大,水稻逐渐跃居粮食产量首位。

3)宋代手工业取得了巨大进步。_____________,当时称_____________,开采量居世界第一。

4)铁、铜等金属冶炼不论质量,还是数量,都达到当时世界最高水平。宋代_____________产量大致相当于18世纪欧洲各国产量的总和。

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