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there isn't

Posted by xfxyjwf at 2005-07-31 10:21:25 on Problem 2318
In Reply To:Is there some wrong in sample?where is (7,9) placed on earth in Group 1. Posted by:Essence_me at 2005-07-31 10:10:51

think carefully and you will get it.

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thank you so much,i find a mistake, now i'd like to find fault in myself:) (40) Essence_me 2005-07-31 10:46:41

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