string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%E5%BB%BA%E5%B8%82%E6%94%BF%E5%AE%9E%E5%8A%A1%E5%87%BA%E9%A2%98%E8%A7%84%E5%BE%8B%E6%98%AF%E4%BB%80%E4%B9%88 => Failed to connect to 101.89.143.195 port 38205: Connection refused"
二建市政实务出题规律是什么
