问题
1,7,(),31,49,71 A.9 B.11 C.17 D.19
1,7,(),31,49,71
A.9
B.11
C.17
D.19
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