string(283) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BB%8F%E6%B5%8E%E7%B1%BB%E4%B8%93%E4%B8%9A%E8%80%83%E7%A0%94%E9%99%A2%E6%A0%A1%E6%9C%80%E6%96%B0%E6%8E%92%E5%90%8D => Failed to connect to 14.18.117.71 port 38220: Connection refused"
经济类专业考研院校最新排名
