97上個經期中考 袁å

97上個經期中考 袁å

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( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 * * * * (1 ) 10 10 , 0 20, 30 1 30 , 1,0 0,1 1,0 1 , 0,1 0 , 1,0 60 , 3,0 1,1 0,2 (3,0) 3 , 1,1 2 , 0,2 0 , 3,0 x y x y if x or y u x y otherwise p p I x y u u x y I x y u u u x y + = = = = = = = = = = = = = = 一 一 2一 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 ( 29 * * * * 40 , 2,0 0,10 2,0 2 , 0,10 0 , 2,0 50 , 10,0 0,10 (1,10) 10,0 10 , 0,10 0, 1,10 11 , 1,10 I x y u u x y I x y u u u x y = = = = = = = = = = = 3一 4一
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1 2 3 3 * * 1 2 2 1 2 2 1 ( , ) . 2 2 3 3 , 3 3 2 ( , ) 2 . - 1 , x y x x y y x y x x y y x x y y x y y y x x u x y x y s t p x p y I I I I I x y p p p p u x y x y s t p x p y I MU p MRS MU p y p p y y p p p p I p I p I p y x p p - = + = = = = = + + - - = = = = = ÷ ÷ - × - ÷ ÷ - = = = 一 一 2 2 2 * 2 2 2 * 2 1 2 3 3 0 3 ( , ) . x
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97上個經期中考 袁å

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