string(232) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%E9%80%A0%E7%9C%9F%E9%A2%98%E5%8F%8A%E7%AD%94%E6%A1%88pdf => Failed to connect to 14.18.117.71 port 38093: Connection refused"
二造真题及答案pdf
