diff --git a/app/controllers/ec_courses_controller.rb b/app/controllers/ec_courses_controller.rb
index 3bd700a8..9a3d491d 100644
--- a/app/controllers/ec_courses_controller.rb
+++ b/app/controllers/ec_courses_controller.rb
@@ -448,23 +448,19 @@ class EcCoursesController < ApplicationController
   end
 
   def score_level_data
-    respond_to do |format|
-      format.json{
-        levels = @ec_course.ec_score_levels
-        ls = []
-        if levels.present?
-          levels.each do |l|
-            ls << {score: l.score, level: l.level}
-          end
-        else
-          ls = [{score: 90, level: "优"},
-                {score: 80, level: "良"},
-                {score: 70, level: "中"},
-                {score: 60, level: "差"}]
-        end
-        render :json => {levels: ls, is_manager: @is_manager}
-      }
+    levels = @ec_course.ec_score_levels
+    ls = []
+    if levels.present?
+      levels.each do |l|
+        ls << {score: l.score, level: l.level}
+      end
+    else
+      ls = [{score: 90, level: "优"},
+            {score: 80, level: "良"},
+            {score: 70, level: "中"},
+            {score: 60, level: "差"}]
     end
+    render :json => {levels: ls, is_manager: @is_manager}
   end
 
   def crud_score_level