问题
44,54,65,77,（)A.91B.90C.89D.88
44, 54, 65, 77, ()
A.91
B.90
C.89
D.88
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
