風傳媒觀點投書：從民進黨初選民調談抽樣誤差
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<![CDATA[<img src="https://image.cache.storm.mg/styles/smg-150x150-fp/s3/media/image/2019/06/06/20190606-080544_U589_M526275_8577.jpg?itok=kqhRMbca">這...