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() 3. Gilbert electricity and Edison the electric light bulb.

 A.discovered;invented   B. discovered;discovered

 C. invented;invented   D. invented;discovered

3.A

3.A (句意为“吉尔伯特发现了电而爱迪生发明了电灯泡”,discover指发现早已存在的事物或东西,invent指发明从未存在过的东西。)

题目来源:2016年启东中学作业本九年级英语下册译林版 > 作业8 Comic strip & Welcome to the unit

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