string(292) "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%BB%BA%E7%AD%91%E5%AE%9E%E5%8A%A1%E5%AE%8C%E6%95%B4%E7%89%88%E7%AD%94%E6%A1%88%E5%8F%8A%E8%A7%A3%E6%9E%90 => Failed to connect to 14.116.215.7 port 38225: Connection refused"
二建建筑实务完整版答案及解析
