string(252) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E5%BB%BA%E6%B0%91%E8%88%AA2023%E5%B9%B43%E6%9C%88%E8%80%83%E8%AF%95%E9%A2%98 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
一建民航2023年3月考试题
