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| Paper | |
| 作者姓名： | 彭海云 |
| 摘 要： | Paper, like many other things we use today, was first made in China. It was about 2, 000 years that the Chinese first made paper.China still has pieces of paper which was made as long ago as |
| 本文献已被 CNKI 等数据库收录！ | |
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