12年羽毛球单打比赛采用的是几分制？

Another key aspect of the 21-point scoring system is that every rally scores a point, regardless of who served. There are very few interruptions allowed, such as when the floor gets slippery or a shuttlecock breaks. However, there is a mandatory one-minute technical timeout when one player reaches 11 points in a game, allowing players to wipe sweat and drink water.