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解钘 ε·²ηŸ₯ A = {8, 5, 5}, B = {6, 5, 7}。求 A ∩ B, A βˆͺ B ε’Œ A \ B。 β€” 详细解答ζ­₯ιͺ€ β€” Detailed Solution | AhaStep