gallup said they use both land line and cell phone for surveying

來源: quantnj 於 2012-11-02 07:00:33 [] [舊帖] [給我悄悄話] 閱讀數 : (0 bytes)

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• 嗬嗬，talking about confirmation bias... -wxc1949- ♂ 給 wxc1949 發送悄悄話 (0 bytes) () 11/02/2012 postreply 07:06:17

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