string(233) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2020%E5%B9%B4%E9%AB%98%E4%BC%9A%E7%9C%9F%E9%A2%98%E7%AD%94%E6%A1%88 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
2020年高会真题答案
