string(257) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2021%E5%B9%B4%E4%BA%8C%E5%BB%BA%E5%B8%82%E6%94%BF%E5%AE%9E%E5%8A%A1%E7%AD%94%E6%A1%885.30 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
2021年二建市政实务答案5.30
