实现所有界面与功能1.01

src/main/java/mathlearning/ui/SelTestFrame.java

@@ -291,4 +291,8 @@ public class SelTestFrame extends JFrame {
         }
         return score;
     }
+
+    private String getQuestion(String[] questions, int dex) {
+        return questions[dex];
+    }
 }