string(296) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2020%E5%88%9D%E7%BA%A7%E6%B6%88%E9%98%B2%E4%B8%AD%E6%8E%A7%E5%91%98%E8%80%83%E8%AF%95%E9%A2%98%E7%9B%AE%E5%8F%8A%E7%AD%94%E6%A1%88 => Failed to connect to 14.116.215.7 port 38230: Connection refused"
2020初级消防中控员考试题目及答案
