string(280) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%E5%BB%BA%E5%AE%9E%E5%8A%A12021%E5%B9%B4%E7%9C%9F%E9%A2%98%E7%AD%94%E6%A1%88%E4%B8%8E%E8%A7%A3%E6%9E%90 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
二建实务2021年真题答案与解析
