3,1/3,1/3,1/9,1/27,1/27,( ) A.1/243 B. 发布时间:2018-06-06 05:18 │ 来源:www.tikuol.com 题型:单项选择题 问题: 3,1/3,1/3,1/9,1/27,1/27,( ) A.1/243 B.1/255 C.1/162 D.1/164