string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B0%B4%E5%88%A9%E5%B7%A5%E7%A8%8B%E7%9B%91%E7%90%86%E8%80%83%E8%AF%95%E5%A4%A7%E7%BA%B2%E6%9C%80%E6%96%B0%E7%89%88 => Failed to connect to 101.89.117.144 port 38208: Connection refused"
水利工程监理考试大纲最新版
