string(242) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%99%95%E8%A5%BF%E4%BA%8C%E5%BB%BA%E7%AE%A1%E7%90%86%E7%AD%94%E6%A1%882021 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
陕西二建管理答案2021
