完成于
每队的选手
每步棋允许天数
同步游戏
计分
注册开放
等级分范围
自动启动
格式
Sep. 13, 2013 — Before there was life on Earth, there were molecules. A primordial soup. At some point a few specialized molecules began replicating. This self-replication, scientists agree, kick-started a biochemical process that would lead to the first organisms. But exactly how that happened -- how those molecules began replicating -- has been one of science's enduring mysteries.
