求Sn=a+aa+aaa+aaaa+aaaaa的前5项之和,其中a是一个数字
posted @ 2019-01-21 11:43 The_Ocean 阅读(1565) 评论(0) 推荐(0)
posted @ 2019-01-21 11:43 The_Ocean 阅读(1565) 评论(0) 推荐(0)
posted @ 2019-01-20 16:44 The_Ocean 阅读(1668) 评论(0) 推荐(0)
posted @ 2019-01-19 11:30 The_Ocean 阅读(730) 评论(0) 推荐(0)
posted @ 2019-01-18 22:58 The_Ocean 阅读(917) 评论(0) 推荐(0)
posted @ 2019-01-17 23:58 The_Ocean 阅读(1782) 评论(0) 推荐(0)
posted @ 2019-01-16 23:38 The_Ocean 阅读(554) 评论(0) 推荐(0)
posted @ 2019-01-14 16:34 The_Ocean 阅读(4275) 评论(0) 推荐(0)
posted @ 2019-01-13 15:25 The_Ocean 阅读(750) 评论(0) 推荐(0)
posted @ 2019-01-12 13:02 The_Ocean 阅读(685) 评论(0) 推荐(0)
posted @ 2019-01-11 21:27 The_Ocean 阅读(1276) 评论(0) 推荐(0)