string(312) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E5%86%8C%E5%AE%89%E5%85%A8%E5%B7%A5%E7%A8%8B%E5%B8%88%E4%B8%8D%E8%83%BD%E7%9B%B4%E6%8E%A5%E6%8A%A5%E4%B8%AD%E7%BA%A7%E4%BA%86%E5%90%97 => Failed to connect to 101.89.117.144 port 38208: Connection refused"
注册安全工程师不能直接报中级了吗
