If put 15 years,

来源: dxnbz 于 2012-04-27 14:08:57 [] [旧帖] [给我悄悄话] 阅读数 : (127 bytes)
回答: my 2 cent: 应该放30年,然后扩大再生产 由 dxnbz 于 2012-04-27 14:00:03

make an option that you can convert to 30 years. Just to leave a room for yourself in case you want to 扩大再生产 later.

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