题目

补全对话 A: Hello, Wei Hua. B: Hello, Lin Tao.   36 A: I went to Beijing with my family. B:   37 A: We took a bus. B:   38  A: Yes, we did. And we took many pictures there. B: Where did you have lunch? A:   39 B:   40  A: Some cakes and drinks. B: When did you arrive home? 答案：BGEDA若集合，，则A∩B=（ ）A．[-∞，1]B．[-1，1]C．∅D．1