Lake Baikalthe worlds oldest and deepest lake篮球比赛是根据运动队在规定的比赛时间里得分多少来决定胜负的，因此，篮球比赛的计时计分系统是一种得分类型的系统Lake Baikal ,which today is located near the center of Asia, is most likely the oldest lake in the world. It began forming 25 million years ago as Asia started splitting apart in series of great faults. The Baikal valley dropped away, eventually filling with water and creating the deepest of the worlds lakes.篮球比赛是根据运动队在规定的比赛时间里得分多少来决定胜负的，因此，篮球比赛的计时计分系统是一种得分类型的系统Lake Baikal is the worlds largest and
