string(321) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A4%84%E7%90%86%E5%A5%BD%E5%85%AC%E5%85%B3%E5%8D%B1%E6%9C%BA%E7%9A%84%E9%87%8D%E8%A6%81%E6%80%A7%E5%92%8C%E5%BF%85%E8%A6%81%E6%80%A7%E8%AE%BA%E6%96%87 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
处理好公关危机的重要性和必要性论文
