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Asked by Sue lee yang from china | Apr. 03, 2015 13:36
About:What is the Great Wall of China made of?

How did Great Wall stay in shape for so long?

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Answered by Kelly | Apr. 03, 2015 21:36
25 16 Reply
You know, the wall we see today were almost built during the Ming Dynasty. The walls built in Qin and Han dynasties almost became ruins. During the Ming Dynasty, bricks were used. More importantly, sticky rice, lime and othe ingredients were used to bond the bricks. It still works today. That's why the wall is still in shape so long.
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