设一个袋子里面有8个编号分别为1~8的球,从中任取一个,观察其编号。用Ω表示样本空间,用A表示事件“抽到奇数号球”,用8表示“抽到偶数号球”,则AB=
A.{1,3,5,7}
B.{2,4,6,8}
C.Ω
D.空集
正确答案是D
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