设A={3,5,6,8,},B={4,5,7,8},求A交B,A并B,

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设A={3,5,6,8,},B={4,5,7,8},求A交B,A并B,

设A={3,5,6,8,},B={4,5,7,8},求A交B,A并B,
设A={3,5,6,8,},B={4,5,7,8},求A交B,A并B,

设A={3,5,6,8,},B={4,5,7,8},求A交B,A并B,
A交B={5,8} A并B={3,4,5,6,7,8}