diff --git a/app/views/shixuns/index.json.jbuilder b/app/views/shixuns/index.json.jbuilder
index d6cf7f4d1..8e5d49a34 100644
--- a/app/views/shixuns/index.json.jbuilder
+++ b/app/views/shixuns/index.json.jbuilder
@@ -7,4 +7,4 @@ json.pagination @total_count > 16 ? true : false
 json.search_tags @search_tags
 json.shixuns do
   json.partial! 'shixun', locals: {shixuns: @shixuns}
-end
\ No newline at end of file
+end
diff --git a/db/migrate/20190805010553_modify_ke_contents_for_markdown.rb b/db/migrate/20190805010561_modify_ke_contents_for_markdown.rb
similarity index 61%
rename from db/migrate/20190805010553_modify_ke_contents_for_markdown.rb
rename to db/migrate/20190805010561_modify_ke_contents_for_markdown.rb
index 3460f2101..bd8ad915d 100644
--- a/db/migrate/20190805010553_modify_ke_contents_for_markdown.rb
+++ b/db/migrate/20190805010561_modify_ke_contents_for_markdown.rb
@@ -3,9 +3,10 @@ class ModifyKeContentsForMarkdown < ActiveRecord::Migration[5.2]
   def change
     def ke_transform_to_md content
       return content if content.blank?
-      s_contents = sanitize(content, tags: %w(img a span table td tr tbody pre), attributes: %w(src href target style))
+      s_contents = sanitize(content, tags: %w(img a table td tr tbody pre), attributes: %w(src href target style))
       s_contents.gsub(">\n<", "><").gsub(/^\n/, "").gsub(" ", "").gsub(/(\n)+/, "<br />")
-          .gsub("\t", "").gsub("\n", "").gsub("    ", "&nbsp;&nbsp;&nbsp;&nbsp;").gsub(/(<br\s?\/?>)+/, "<br />")
+          .gsub("\t", "").gsub("    ", "&nbsp;&nbsp;&nbsp;&nbsp;").gsub("\n", "<br />")
+          .gsub(/(<br\s?\/?>)+/, "<br />")
     end
     #
     # # 课程讨论区
@@ -15,10 +16,12 @@ class ModifyKeContentsForMarkdown < ActiveRecord::Migration[5.2]
     # end
 
     #试卷的标题
-    # ExerciseQuestion.find_each do |eq|
-    #   question_title = ke_transform_to_md eq.question_title
-    #   eq.update_column(:question_title, question_title)
-    # end
+    ExerciseQuestion.where(:exercise_id => 1890).find_each do |eq|
+      puts("#eq.question_title: #{eq.question_title}")
+      question_title = ke_transform_to_md eq.question_title
+      puts("#question_title: #{question_title}")
+      eq.update_column(:question_title, question_title)
+    end
 
     # # 试卷的答案
     # ExerciseStandardAnswer.find_each do |esa|
@@ -27,10 +30,10 @@ class ModifyKeContentsForMarkdown < ActiveRecord::Migration[5.2]
     # end
     #
     # 试卷题库的问题标题
-    ExerciseBankQuestion.find_each do |ebq|
-      question_title = ke_transform_to_md ebq.question_title
-      ebq.update_column(:question_title, question_title)
-    end
+    # ExerciseBankQuestion.find_each do |ebq|
+    #   question_title = ke_transform_to_md ebq.question_title
+    #   ebq.update_column(:question_title, question_title)
+    # end
     #
     # # 试卷答案
     # ExerciseBankStandardAnswer.find_each do |ebsa|