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日期：2026-06-16 12:22:46 分类：手机资讯大小：未知人气：17

atthattimeheresidedinSalem，MassachusettsAlexanderGrahamBellinventedhistel...

at that time he resided in Salem， MassachusettsAlexander Graham Bell invented his telephone as a result of his research into improving the telegraph system He was experimenting into improving the system so mu。