string(328) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%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%B3%95%E8%A7%84%E8%80%83%E8%AF%95%E5%86%85%E5%AE%B9%E6%98%AF%E4%BB%80%E4%B9%88 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
二级建造师建筑工程法规考试内容是什么
