string(232) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=21%E5%B9%B4%E4%BA%8C%E5%BB%BA%E6%8A%A5%E8%80%83%E6%9D%A1%E4%BB%B6 => Failed to connect to 101.91.112.32 port 38221: Connection refused"
21年二建报考条件
