问题
[A] concentration [B] continuity [C] conformity [D] conductivity
[A] concentration
[B] continuity
[C] conformity
[D] conductivity
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
