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23#
發表於 2009-3-26 01:29 PM
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pure math公仔箱論壇5 B) r" K) C* Z
+ Z9 ^' K+ `+ {- U- m[250(80x+1)+2y-250]/2 = (250*80x+2y)/2 = (2000x+2y)/2 = 1000x+y
6 r8 o q$ `" G3 m: c Pwww3.tvboxnow.com
4 }. `1 M" v# ^0 @! o* W! Gtvb now,tvbnow,bttvbif x = 111 y = 2222, you number is 111-2222 |
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