diff --git a/adc-da-slrs/src/main/resources/mybatis/mapper/askQuestions/AskQuestionsMapper.xml b/adc-da-slrs/src/main/resources/mybatis/mapper/askQuestions/AskQuestionsMapper.xml
index ea2a0ca4..19159547 100644
--- a/adc-da-slrs/src/main/resources/mybatis/mapper/askQuestions/AskQuestionsMapper.xml
+++ b/adc-da-slrs/src/main/resources/mybatis/mapper/askQuestions/AskQuestionsMapper.xml
@@ -6,7 +6,8 @@
             SELECT
             DISTINCT
             aq.STANDARD_ID,aq.CLASSIFICATION,aq.STANDARD_ENCDOING,
-            aq.STANDARD_NAME
+            aq.STANDARD_NAME,
+            MAX(aq.QUESTION_TIME) as questionTime
             FROM ask_questions aq
             LEFT JOIN reply ON aq.ID = reply.ASK_ID
             LEFT JOIN ts_user t1 ON t1.USID = aq.QUESTIONER
@@ -37,6 +38,13 @@
                     AND reply.ANSWERER = #{askQuestions.answerer}
                 </if>
             </where>
+            GROUP BY
+            aq.STANDARD_ID,
+            aq.CLASSIFICATION,
+            aq.STANDARD_ENCDOING,
+            aq.STANDARD_NAME
+            ORDER BY
+            questionTime DESC
     </select>
 
     <select id="getAskQuestionsByStandardId" resultType="com.adc.da.slrs.StandardQA.entity.AskQuestions">