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%E8%80%83%E8%AF%95%E7%AC%AC%E4%BA%8C%E9%98%B6%E6%AE%B5 => Failed to connect to 125.88.227.171 port 38114: Connection refused"
注会考试第二阶段
