string(292) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B8%82%E5%9C%BA%E9%83%A8%E5%92%8C%E9%94%80%E5%94%AE%E9%83%A8%E7%9A%84%E5%8C%BA%E5%88%AB%E6%98%AF%E4%BB%80%E4%B9%88%E5%91%A2 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
市场部和销售部的区别是什么呢
