string(265) "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%E7%BB%BC%E5%90%88%E9%98%B6%E6%AE%B5%E7%BD%91%E6%A0%A1%E9%80%9A%E8%BF%87%E7%8E%87 => Failed to connect to 14.116.215.7 port 38230: Connection refused"
注会综合阶段网校通过率
