资于事父以事母而爱同:who invented a lamp to keep miners safe underground
来源:百度文库 编辑:查人人中国名人网 时间:2024/10/05 09:47:24
谁发明了能让矿工在地底层工作时安全的灯?
谁发明能使矿工在矿井下安全使用的灯?
who invented a lamp to keep miners safe underground
who invented a lamp to keep miners safe underground?
who invented the aeroplane
Who invented(发明) the sandwich??
Who invented the first computer?
Who invented the first bike?
who invented the 1st telephone and when?
_____ his fifth year, he invented a new machine.
Who invented the first robot,Clinton,Dr Sun Yatsen or Engelberg?
who invented the earliest instrument to tell people where earthquakes happened?