ǸŴ 13 簳Ǹ 켱 ϴ ̴.
2 3 ǰ 3 , 12 2 , ʵл Ƶ 1 ̴. 簳 1 ϸ 50%, 2 40%, 3~6 30% ־.
ݰǸŴ븮ȸ " ߴ ȭǸ鼭 1000 3 ø ִ" "̹ Ǹſ ݵ ݰ 簳 ִ Ⱑ "̶ ߴ.
ƻ ڵ " پ ǰ ûϰ 簳 䱸 ϱ ǸŸ ȹ "̶ "ݰ ݵ 簳Ǿ 4 3 ǥ ϰ ִ" .
̾ "ǥ Բ ݰ 簳 ɰ ø ִ "̶ ٿ.
̿ Բ ƻ 13 ûõ ü ݰ Ǹſ ȭ Ÿȫ .
ƻ پ 濵å õ , ǽ ȸǸ ϴ 簳 ȭ ѷ ̰ ִ.