string(294) "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%B3%A8%E5%86%8C%E5%B7%A5%E7%A8%8B%E5%B8%88%E7%9C%9F%E9%A2%98%E5%8F%8A%E7%AD%94%E6%A1%88%E8%A7%A3%E6%9E%90 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
消防注册工程师真题及答案解析
