1,3,7,15,31,63,()。A.127 B.144 C.102 D.104 发布时间:2017-06-22 07:30 │ 来源:www.tikuol.com 题型:单项选择题 问题: 1,3,7,15,31,63,()。A.127B.144C.102D.104