printing it in a freight car that also served as his laboratory For saving the life of a station official’s child， he was rewarded by being taught telegraphy While working as a telegraph operator， he m。
Jimmie#39s father， station agent JU Mackenzie of Mount Clemens， Michigan， was so grateful that he took Edison under his wing and trained him as a telegraph operator Edison#39s deafness aided him as it blocked out。
CCITT 国际电报电话咨询委员会Consultative Committee International Telegraph and Telephone的缩写形式 中央处理器 中央处理器Central Processing Unit 即CPU，是微型机中的中央处理单元，或计算机的主芯片 字符character 字符指字母。
Edison became a telegraph operator after he saved threeyearold Jimmie MacKenzie from being struck by a runaway train Jimmie#39s father， station agent JU MacKenzie of Mount Clemens， Michigan， was so。
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