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解钘 ε·²ηŸ₯ A = {8, 10, 5, 8, 1}, B = {10, 5, 9, 4}。求 A ∩ B, A βˆͺ B ε’Œ A \ B。 β€” 详细解答ζ­₯ιͺ€ β€” Detailed Solution | AhaStep