update PaperQuestion

content/content-service/src/main/java/cn/reghao/tnb/content/app/exam/model/po/PaperQuestion.java

@@ -1,5 +1,6 @@
 package cn.reghao.tnb.content.app.exam.model.po;
 
+import cn.reghao.jutil.jdk.db.BaseObject;
 import lombok.Getter;
 import lombok.Setter;
 
@@ -13,7 +14,7 @@ import java.util.List;
  */
 @Setter
 @Getter
-public class PaperQuestion {
+public class PaperQuestion extends BaseObject<Integer> {
     private Integer paperId;
     private Integer pid;
     @NotNull