当前位置：中文谷 >

关于OrvilleandWilburWrig的百科

OrvilleandWilburWrightwerethetwoAmericanbrothersthatinv...

  • OrvilleandWilburWrightwerethetwoAmericanbrothersthatinv...

  • 问题详情：OrvilleandWilburWrightwerethetwoAmericanbrothersthatinventedthefirstairplane.Theystartedoutasbicyclerepairmen.Soon,theybecameinterestedindifferenttypesofmachinesandbegantolearn   41   themachinesworked.Theyobservedbirdsflying  42  ...
  • 32702

热门推荐

猜您喜欢
专题
友情链接