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师梦圆初中英语教材同步人教版九年级全一册Section A 1a—2d下载详情
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内容预览

compass

指南针

printing

印刷术

gunpowder

火 药

Do you know the following inventions? Who invented them, and when?

paper

Cai Lun

105 A. D.

printing

Bi Sheng

1041-1045

It was invented …

compass

11th Century

gunpowder

9th Century

It was invented …

car

Karl Benz

in 1885

calculator

in 1971

It was invented …

telephone

in 1876

TV

in 1927

It was invented …

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