MOD: PaperVO

mooctest-site-server/src/main/java/cn/iselab/mooctest/site/web/data/PaperVO.java

@@ -19,5 +19,5 @@ public class PaperVO {
 
     private Byte difficult;
 
-    private boolean isUsedByExam;
+    private boolean usedByExam;
 }