string(244) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E4%BC%9A%E8%B4%A2%E7%AE%A1%E7%9C%9F%E9%A2%982020%E5%8D%B7%E4%BA%8C => Failed to connect to 125.88.227.171 port 38062: Connection refused"
注会财管真题2020卷二
