string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%AD%E7%BA%A7%E5%8F%96%E6%B6%88%E4%B8%A4%E5%B9%B4%E8%BF%87%E4%B8%89%E7%A7%91%E6%98%AF%E7%9C%9F%E7%9A%84%E5%90%97 => Failed to connect to 101.89.166.210 port 38089: Connection refused"
中级取消两年过三科是真的吗
