Alexander Graham Bell, Scottish-born American inventor, scientist, and teacher of the deaf whose foremost accomplishments were the invention of the telephone (1876) and refinement of the phonograph (1886). He also worked on use of light to transmit sound
Alexander Graham Bell不是休息的一个人 相关内容 a2 channel RC jeep with black wheels 2渠道RC吉普用黑轮子[translate] a报价单如下 The quotation is as follows[translate] aI really appreciate that I know u.But I really feel a little sick 正在翻译,请等待...[translate] ...
You can thank Alexander Graham Bell! Bell was born inScotland on March 3,1847. When he was a boy, hedesigneda machine that cleaned wheat. Later,when he was a teacher of thedeaf, Bell developed the idea of "electronic speech." He sent his first message to his assistant, Mr. Watson, ...
aI'm interested in is an invention is phone.The phone is Alexander Graham Bell.Why the invention the phone? 我感兴趣是发明是电话。电话是Alexander Graham Bell。为什么发明电话? [translate] aIt's kinda fun 它是有点儿乐趣 [translate] a由于政府没有对蛋鸡行业明确可操作的发展规划,国家宏观调控不是...