string(247) "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%E8%80%83%E8%AF%95%E5%8F%8A%E7%AD%94%E6%A1%88 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
建设法规考试及答案
