已知集合A={1,2,5},B={2,4,6},则A∩B={2}.
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1.已知集合A={1,2,5},B={2,4,6},则A∩B={2}.
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2.已知集合A={2,4,6},集合B={3,6},则集合AUB=( )
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3.已知集合A={1,3,5,7,9},B={0,3,6,9,12},则A∩B=( )
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4.已知集合A={1,3,5,7,9},B={2,3,4,7,10},则A∪B=
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5.已知集合A={1,2,3},B={2,3,4},则A∪B=( )
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6.已知集合A={1,3,5,7,9},B={2,3,4,7,10},则A∩B=
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7.已知集合A={x|x-1≥0},B={0,1,2},则A∩B=( )
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8.已知集合A={x|12},则AUB=
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9.已知集合B={(2,0),(3,3),(1,5),(5,2)},则集合B的反射是()
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10.已知集合B={(0,0),(6,3),(4,1),(5,1)},则集合B的反射是()。