string(276) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%9B%91%E7%90%86%E8%80%83%E8%AF%95%E4%B8%89%E6%8E%A7%E4%B8%AD%E7%9A%84%E6%8A%95%E8%B5%84%E5%A5%BD%E9%9A%BE => Failed to connect to 101.89.117.144 port 38056: Connection refused"
监理考试三控中的投资好难
