![Manyinventionshavehelpedimprovedourday-to-daylivesandar...]( "Manyinventionshavehelpedimprovedourday-to-daylivesandar...")
- 問題詳情：Manyinventionshavehelpedimprovedourday-to-daylivesandarewellremembered,forexample,AlexanderGrahamBellforthetelephoneandThomasAlvaEdisonforthelightbulb.However,manyotherinventors’nameshavebeenforgotten61theiroutstandingaccomplishments.Forexam...
- 20004
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