string(248) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%BB%BA%E8%AE%BE%E6%B3%95%E8%A7%84%E6%9C%BA%E8%80%83%E5%88%A4%E6%96%AD%E9%A2%98 => Failed to connect to 101.91.112.32 port 38195: Connection refused"
建设法规机考判断题
