string(283) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E5%AE%89%E5%B8%88%E8%A6%81%E4%BB%80%E4%B9%88%E5%AD%A6%E5%8E%86%E5%8F%AF%E4%BB%A5%E8%80%83%E4%B8%AD%E7%BA%A7 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
注安师要什么学历可以考中级
