string(289) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2020%E6%B3%A8%E5%86%8C%E7%9B%91%E7%90%86%E5%B8%88%E8%80%83%E8%AF%95%E6%95%99%E6%9D%90%E7%AD%94%E6%A1%88%E8%A7%A3%E6%9E%90 => Failed to connect to 101.89.117.144 port 38056: Connection refused"
2020注册监理师考试教材答案解析
