string(247) "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%E8%80%83%E8%AF%95%E6%8A%BC%E9%A2%98%E8%83%BD%E8%BF%87%E5%90%97 => Failed to connect to 14.116.215.7 port 38230: Connection refused"
中级考试押题能过吗
