string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E5%BB%BA%E6%9C%BA%E7%94%B5%E5%91%BD%E9%A2%98%E7%BB%84%E8%80%81%E5%B8%88 => Failed to connect to 101.89.117.144 port 38076: Connection refused"
一建机电命题组老师
