string(296) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2020%E4%B8%80%E5%BB%BA%E6%B0%B4%E5%88%A9%E5%AE%9E%E5%8A%A1%E7%9C%9F%E9%A2%98%E5%8F%8A%E7%AD%94%E6%A1%88%E5%AE%8C%E6%95%B4%E7%89%88 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
2020一建水利实务真题及答案完整版
