string(278) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2023%E4%BA%8C%E5%BB%BA%E9%80%9A%E8%BF%87%E7%8E%87%E4%B8%BA%E4%BB%80%E4%B9%88%E9%82%A3%E4%B9%88%E4%BD%8E%E5%91%A2 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
2023二建通过率为什么那么低呢
