What is your logic?

来源: Audi 于 2009-04-15 17:10:50 [] [旧帖] [给我悄悄话] 阅读数 : 0 (98 bytes)

假设只有两种车,一种四千磅,一种两千磅.then how come there is third one - 三千磅的?

?????????

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