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楼主 她在买票我来代发2009/8/18 11:49:00
486+283=769
具体内容见DVD
2 = =2009/8/18 11:50:00
3 ==2009/8/18 12:23:00
4 = =2009/8/18 12:26:00
5 = =2009/8/18 12:26:00
486-283=203
283-203=80
486-80=406
406-203=203
6 = =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
7 = =2009/8/18 13:16:00
8 = =2009/8/18 13:17:00
9 = =2009/8/18 13:24:00
10 = =2009/8/18 13:41:00
除了486和283 基本是一个字也没看懂= =
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