如图,AB‖EF‖DC,AB=a,DC=b,DE/EA=3/2,则EF=
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![如图,AB‖EF‖DC,AB=a,DC=b,DE/EA=3/2,则EF=](/uploads/image/z/13363275-3-5.jpg?t=%E5%A6%82%E5%9B%BE%2CAB%E2%80%96EF%E2%80%96DC%2CAB%3Da%2CDC%3Db%2CDE%2FEA%3D3%2F2%2C%E5%88%99EF%3D)
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如图,AB‖EF‖DC,AB=a,DC=b,DE/EA=3/2,则EF=
如图,AB‖EF‖DC,AB=a,DC=b,DE/EA=3/2,则EF=
如图,AB‖EF‖DC,AB=a,DC=b,DE/EA=3/2,则EF=
作好会马上给答案的.