string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%88%9D%E7%BA%A7%E7%BB%8F%E6%B5%8E%E5%B8%88%E6%8A%BC%E9%A2%98%E5%87%86%E4%B8%8D%E5%87%86 => Failed to connect to 125.88.227.171 port 38114: Connection refused"
初级经济师押题准不准
