问题
2 5 11 23 47 () A.18 B.91 C.95 D.105
2 5 11 23 47 ()
A.18 B.91 C.95 D.105
请帮忙给出正确答案和分析,谢谢!
Fatal error: Uncaught [XSException] ../../../usr/local/xunsearch/sdk/php/lib/XS.php(2559): Connection refused(C#111, localhost:8384)
thrown in /usr/local/xunsearch/sdk/php/lib/XS.php on line 2559