how about NUGT?

来源: 跟锋 于 2014-08-25 15:30:54 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)
回答: the time decay for dust is roughly 30% per year. 由 zgz123 于 2014-08-25 15:25:26

所有跟帖： 

• I do not know. I think they should be the same. -zgz123- ♂ 给 zgz123 发送悄悄话 (0 bytes) () 08/25/2014 postreply 15:32:39

• pphed you -跟锋- ♂ 给 跟锋 发送悄悄话 跟锋 的博客首页 (0 bytes) () 08/25/2014 postreply 15:34:19

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