9条,20条/页
1原文她在买票我来代发发表于:2009/8/18 11:49:00
486+283=769
具体内容见DVD
1= =发表于:2009/8/18 11:50:00
2==发表于:2009/8/18 12:23:00
3= =发表于:2009/8/18 12:26:00
4= =发表于:2009/8/18 12:26:00
486-283=203
283-203=80
486-80=406
406-203=203
5= =发表于:2009/8/18 13:14:00
x-y=z
y-z=l
x-l=m
求证m=2z
__
2z=2(x-y),m=x-l=x-y+z=x-y+x-y,m=2z
得证
6= =发表于:2009/8/18 13:16:00
7= =发表于:2009/8/18 13:17:00
8= =发表于:2009/8/18 13:24:00
9= =发表于:2009/8/18 13:41:00
除了486和283 基本是一个字也没看懂= =
9条,20条/页
1