碑个铁一样的答案你:公仔箱論壇2 n: N ]0 }9 f' c! ?" V. j
假设你本身有12蚊.www.tvboxnow.com8 J1 ?! H1 [- `; J2 Z
8蚊买,仲有4蚊系袋.
3 X4 d* h% [; S( l0 M公仔箱論壇9蚊卖。又有返13蚊
" y$ N! D9 h- Y, c$ z( z5 A8 ywww.tvboxnow.com10蚊买,剩低3蚊,www.tvboxnow.com0 n1 |8 {. P, w0 e/ _+ x3 I& ]! A
11卖,又有返14蚊系袋,公仔箱論壇/ Y" Y1 W" G9 Y6 }1 }: `! `4 k2 _8 O
14-12=2.www.tvboxnow.com; k% _. p: w, g, S9 a
铁一般的证明!!!!!!!!!!
4 A6 N9 p+ b( ?' itvb now,tvbnow,bttvb实在太多人答岩咗,楼主唔敢讲答案》?????? |