The American inventor,Thomas Edison,is believed to be the first person to use"hello"in the end of

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• The American inventor,Thomas Edison,is believed to be the first person to use"hello"in the end of
• 英语翻译Maybe the "hello"is more often than any other one in the English language.Everyone in the United States and other countries uses the world again and again,everyday of the week.The american inventor Thomas Edison is believed to be the first person to use"hello"onthe telephone soon afterthe invention of it.打了1段哦,翻译下,
• The word "hello" is perhaps used more often than any other word in the English language.Everybodyin the United States uses this word again and again every day and everywhere.You pick up the phone and the first word you hear is "Hello!" You meet a friend in the street and the first word you say is "Hello!" Where did the word come from?The American inventor(发明家),Thomas Edison,was the first person to use "hello" in the late 18th century soon after the in
• 数学概率分配8份礼物给8个人,其中1人能够得到多份礼物,其他人最多只能获得1份,求所有人都有礼物的概率
• 因式分解：a3+(b+2)a2+2ab+(a+b)