string(251) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2021%E5%B9%B4%E9%99%95%E8%A5%BF%E4%BA%8C%E5%BB%BA%E8%80%83%E8%AF%95%E8%AF%95%E9%A2%98 => Failed to connect to 218.78.59.96 port 38042: Connection refused"
2021年陕西二建考试试题
