【简答题】In 1947, a devvice called the transistor was invernted in Bell Laboratories, the research and development arm of AT&T (ow Lucent Technologies). That invention helped to establish entire branches of in...
【简答题】In 1947, a devvice called the transistor was invernted in Bell Laboratories, the research and development arm of AT&T (ow Lucent Technologies). That invention helped to establish entire branches of in...