string(321) "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%E6%B3%A8%E5%86%8C%E5%88%B0%E5%8D%95%E4%BD%8D%E5%90%8E%E6%9C%89%E8%B4%A3%E4%BB%BB%E5%90%97 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
注册安全工程师注册到单位后有责任吗
