题目已知集合 A = (1, 2, 3),集合 B = (1, 3, 5, 7),则 A ∩ B = (3, 5)A. 对B. 错已知集合 A = {1, 2, 3},集合 B = {1, 3, 5, 7},则 A ∩ B = {3, 5}A. 对B. 错题目解答答案B. 错