string(301) "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%E7%BB%8F%E6%B5%8E%E5%B8%88%E5%8F%AA%E8%BF%87%E4%B8%80%E9%97%A8%E6%98%8E%E5%B9%B4%E8%83%BD%E5%86%8D%E8%80%83%E5%90%97 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
中级经济师只过一门明年能再考吗
