碑个铁一样的答案你:5.39.217.76* ^/ d, P* Q0 Y0 c/ R# p& w: {
假设你本身有12蚊.5.39.217.76 G8 i2 N/ T: o. Z% d: ^# A
8蚊买,仲有4蚊系袋.5.39.217.76+ J! N: g1 Z/ j: q0 v5 {; l& D: [2 z3 ~
9蚊卖。又有返13蚊2 ~/ d6 p/ _2 O" J
10蚊买,剩低3蚊,
# p. _4 j3 v" P1 f8 m+ T! e11卖,又有返14蚊系袋,) m( v3 Z+ w9 {! l/ E- G
14-12=2.tvb now,tvbnow,bttvb4 M7 _! S* h8 W9 [% t! Y4 G1 N: B
铁一般的证明!!!!!!!!!!
( f4 }4 c; |! `实在太多人答岩咗,楼主唔敢讲答案》?????? |