flip coin has more chance to win, at least 50/50

来源: mrict. 于 2012-12-03 15:08:18 [] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)
回答: 12/03/2012：Short 由 FreeTrader 于 2012-12-03 13:40:31
请您先登陆，再发跟帖！