string(247) "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%E8%AF%95%E5%8D%B7%E4%BB%A3%E7%A0%81%E6%98%AF%E4%BB%80%E4%B9%88 => Failed to connect to 218.78.59.96 port 38043: Connection refused"
一建试卷代码是什么
