string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%A4%E6%8E%A5%E7%8F%AD%E5%88%B6%E5%BA%A6%E7%9A%84%E8%80%83%E6%A0%B8%E9%A2%98%E7%9B%AE => Failed to connect to 14.18.117.71 port 38041: Connection refused"
交接班制度的考核题目
