2022-04-01问：scroll. Go to Code Form
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2022-04-01问：scroll. Go to Code Form
答：

2022-04-01问：By the end of the 15th century, 35
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2022-04-01问：the spread of parchment.
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2022-04-01问：A handwritten book is a book
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2022-04-01问：manuscripts underwent in the Middle
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2022-04-01问：and was erased, and on cleaned
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