活字印刷方法是发明的。_刷题宝

题干

活字印刷方法是（）发明的。

A：蔡伦

B：毕昇

C：仓颉

上一题下一题 0.0难度选择题更新时间:2019-06-18 10:14:15

答案(点此获取答案解析）

B

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