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A.AB B.AB C.A=B D.A∈B
A.AB B.BA C.A=B D.AB
若集合A={一次函数y=ax+b的图象},B={直线y=ax+b},则( )
若集合A={0,1,2,3},B={1,2,4},则集合AB=
A.{0,1,2,3,4} B.{1,2,3,4} C.{1,2} D.{0}