string(253) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2021%E9%AB%98%E7%BA%A7%E7%BB%8F%E6%B5%8E%E5%B8%88%E6%8A%BC%E9%A2%98%E9%A2%98%E5%BA%93 => Failed to connect to 101.89.143.195 port 38109: Connection refused"
2021高级经济师押题题库
