What do paper, printing with moveable type, gunpowder and the compass have in common? The answer is that they were Chinese inventions. Without them, the European advances from the 15th century onwards would have been far harder, if not impossible.
造纸、活字印刷、火药和指南针有什么共同点？答案是，它们都是manbetx3.0 的发明。没有它们，欧洲从15世纪开始的进步会困难得多——甚至不可能。
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