February11thisthebirthdayofthemostfamousAmericaninvento...
问题详情：February11thisthebirthdayofthemostfamousAmericaninventor,ThomasAlvaEdison.Hewasbornin1847.Hewasnotagoodstudentwhenhewasayoungboy.Histeachersaidhewasoneofthemostdumbheaded(笨头笨脑的)students.H...