what are three inventions that contributed to the spread of learning?

问题描述:

what are three inventions that contributed to the spread of learning?

the spread of learning是知识的传播嘛,注意还有让它传播的意思~contributed to 古代的东西咯~我猜是中国四大发明里的嘛~造纸术paper-making(因为知识有了载体)活字印刷术print typography(加快了书的生成速度...