string(289) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2023%E4%B8%80%E7%BA%A7%E5%BB%BA%E9%80%A0%E5%B8%88%E5%BB%BA%E7%AD%91%E5%B7%A5%E7%A8%8B%E6%95%99%E6%9D%90%E5%8F%98%E5%8A%A8 => Failed to connect to 101.89.117.144 port 38076: Connection refused"
2023一级建造师建筑工程教材变动
