fixbug

app/views/exercise_questions/edit.json.jbuilder

@@ -6,4 +6,5 @@ json.partial! "exercise_questions/exercise_questions",
               shixun_challenges: @exercise_question_shixun,
               exercise_type:1,
               user_answer:[],
-              ques_position:nil
+              ques_position:nil,
+              edit_type:true

app/views/exercises/edit.json.jbuilder

@@ -16,8 +16,7 @@ json.exercise_questions do
                   exercise_type:1,
                   user_answer:[],
                   shixun_type:0,
-                  ques_position:nil,
+                  ques_position:nil
-                  edit_type:true
   end
 end