我比較相信Gallup民意調查。Gallup調查精度記錄 (鏈接在內)

來源: Chris20119 於 2012-10-20 16:53:17 [舊帖] [給我悄悄話] 本文已被閱讀：次

我比較相信Gallup民意調查。Gallup調查精度記錄(請點擊)

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