オバマはなぜ勝てたのか。戦略分析。The strategy that paved a winning path http://www.washingtonpost.com/politics/decision2012/the-strategy-that-paved-a-winning-path/2012/11/07/0a1201c8-2769-11e2-b2a0-ae18d6159439_story.html…
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