回复：十年就是2个5年.十五年就是3个5年.:)

来源: finitesea 于 2007-08-22 12:10:52 [] [旧帖] [给我悄悄话] 阅读数 : (130 bytes)

but the ratio of interest and principle is changing, first several years, its good for bank, gradually, it let you get more return

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