string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B6%88%E9%98%B2%E6%93%8D%E4%BD%9C%E5%91%98%E8%AF%81%E5%AE%9E%E6%93%8D%E8%80%83%E8%AF%95%E9%9A%BE%E5%90%97 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
消防操作员证实操考试难吗
