string(276) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B1%B1%E4%B8%9C%E7%9C%81%E6%B3%A8%E5%86%8C%E5%AE%89%E5%85%A8%E5%B7%A5%E7%A8%8B%E5%B8%88%E5%A4%8D%E5%AE%A1 => Failed to connect to 101.89.159.206 port 38100: Connection refused"
山东省注册安全工程师复审
