contemporary linear algebra f( j$ f- q3 P( x
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by howard anton robert c. busby 4 o" M0 G, `# b* ~/ j; @ " z' o' g; A% s/ K4 p# P不知道教材变没变,我这本8成新,就是黑色皮,上面有个猩猩脑袋的。3 m3 [1 m5 {" I, o
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