INTRODUCTION TO THE PRACTICE OF STATISTICS + y ^% K- M1 x$ A3 @3 p5TH EDITION ) O9 p+ n6 t* U: j! v" EAUTHER: DAVID & GEORGE 5 \; h* O" ^3 `1 O" z1 @1 o7 q9 d( o9 i2 G! w
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发表于 2008-9-19 21:59
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