string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E4%BC%9A%E6%8A%BC%E9%A2%98%E7%8F%AD%E6%9C%89%E7%94%A8%E5%90%97 => Failed to connect to 101.89.117.144 port 38056: Connection refused"
注会押题班有用吗
