string(248) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8E%BB%E5%B9%B4%E8%8B%B1%E8%AF%AD%E5%9B%BD%E5%AE%B6%E7%BA%BF%E8%80%83%E7%A0%94 => Failed to connect to 101.91.112.32 port 38221: Connection refused"
去年英语国家线考研
