string(321) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E5%86%8C%E6%B6%88%E9%98%B2%E5%B7%A5%E7%A8%8B%E5%B8%88%E6%8A%A5%E5%90%8D%E6%9D%A1%E4%BB%B6%E5%92%8C%E8%A6%81%E6%B1%82%E6%98%AF%E4%BB%80%E4%B9%88 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
注册消防工程师报名条件和要求是什么
