{"source":{"id":"2109660683751293239","title":"过去盖洛普靠打座机做调查，一百个人里能有四十个人接听。 现在那些群发到手机里的短信问卷，应答率甚至不到 2%。 分析师塞…","url":"https://mubeitech.com/p/2109660683751293239"},"method":"semantic-similarity","count":0,"items":[]}