string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B6%88%E9%98%B2%E7%BB%BC%E5%90%88%E8%83%BD%E5%8A%9B%E8%AE%B2%E4%B9%89 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
消防综合能力讲义
