diff --git a/src/com/fh/controller/api/V1.java b/src/com/fh/controller/api/V1.java
index 4edd16b..8b067d7 100644
--- a/src/com/fh/controller/api/V1.java
+++ b/src/com/fh/controller/api/V1.java
@@ -1700,7 +1700,7 @@ public class V1 extends BaseController {
 										testPaperInfo.getQuestionId());
 								testInfoPd.put("ANSWER",
 										testPaperInfo.getAnswer());
-								flag = testPaperInfo.getAnswer().toString().equals("")?"":testPaperInfo.getAnswer().toString();
+								flag = testPaperInfo.getAnswer().toString().equals("")?""+flag:testPaperInfo.getAnswer().toString();
 								testInfoPd.put("RIGHT",
 										testPaperInfo.getRight());
 								testInfoPd.put("SCORE",