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设全集U=R,集合,,,则等于( )
A.{2} B. C.{x|x<2,或2<x<3 D.或
设全集U=R,集合A={x|},B={x|1<<8},则(CUA)∩B等于( )
A.[-1,3) B.(0,2] C.(1,2] D.(2,3)
设全集U=R,集合A={x|},B={x|1<<8},则(CUA)∩B等于( )A.[-1,3) B.(0,2] C.(1,2] D.(2,3)