string(244) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2028%E5%B9%B4%E4%B8%AD%E7%BA%A7%E7%BB%8F%E6%B5%8E%E5%B8%88%E7%AD%94%E6%A1%88 => Failed to connect to 101.89.166.210 port 38089: Connection refused"
2028年中级经济师答案
