string(251) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2021%E4%BA%8C%E7%BA%A7%E5%BB%BA%E9%80%A0%E5%B8%88%E5%BB%BA%E7%AD%91%E6%8A%BC%E9%A2%98 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
2021二级建造师建筑押题
