China, where paper was invented in（）Dynasty, has a long history of paper arts and crafts .

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• The normal type（s） of academic paper are（is）：
• The process of reading paper is：
• The main structure（s） of research paper are（is）：
• Paper was invented by Cai Lunin the（）in China.
• The Xuan paper is made in Xuanzhou of（）Province.