string(235) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2020%E5%B9%B4%E5%8C%97%E4%BA%AC%E4%BA%8C%E5%BB%BA%E5%81%9C%E8%80%83 => Failed to connect to 101.89.159.206 port 38075: Connection refused"
2020年北京二建停考
