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have a look

Posted by hnlwt at 2008-08-21 16:43:34 on Problem 2318 and last updated at 2008-08-21 16:44:13
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
please look it again carefully!!!
do you understand???

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