string(276) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8C%97%E4%BA%AC%E4%BA%8C%E5%BB%BA%E8%B5%84%E6%A0%BC%E9%A2%84%E5%AE%A1%E8%BF%98%E6%98%AF%E5%90%8E%E5%AE%A1 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
北京二建资格预审还是后审
