string(280) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2024%E5%B9%B4%E6%B6%88%E9%98%B2%E5%B7%A5%E7%A8%8B%E5%B8%88%E6%95%99%E6%9D%90%E4%BC%9A%E6%94%B9%E7%89%88%E5%90%97 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
2024年消防工程师教材会改版吗
