当代愚公!

回答: 20圆钱涮埽2011-08-04 17:44:24

$3,000,000 / $20 / 365 (day) / 40 (year) = 10.27 (times/day)

同学们那,这才是当代愚公啊!挖山不止,一日十次,四十年啊!

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There is a little word 'interest' you may forget -was1999- 给 was1999 发送悄悄话 (0 bytes) () 08/04/2011 postreply 20:07:54

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