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Gibert electricity, but Edison the light bulb. [ ] A.discovered; foundB.discover

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Gibert electricity, but Edison the light bulb. [ ] A.discovered; foundB.discover

Gibert ________ electricity, but Edison ________ the light bulb.

[]

A.discovered; foundB.discovered; inventedC.invented; discoveredD.uncovered; invented

试题答案

答案:B