diff --git a/app/services/homeworks_service.rb b/app/services/homeworks_service.rb
index 64aec92c6..6659ec760 100644
--- a/app/services/homeworks_service.rb
+++ b/app/services/homeworks_service.rb
@@ -314,8 +314,8 @@ class HomeworksService
 
     if work.work_status != 0
       if myshixun_endtime.present?
-        work.cost_time = myshixun_endtime.to_i - setting_time.publish_time.to_i
-
+        work_cost_time = myshixun_endtime.to_i - setting_time.publish_time.to_i
+        work.cost_time = work_cost_time > 0 ? work_cost_time : games.select{|game| game.status == 2}.pluck(:cost_time).sum
         efficiency = (pass_consume_time == 0 ? 0 : Math.log((user_total_score / pass_consume_time.to_f) + 1.0))
         work.efficiency = format("%.2f", efficiency)
 
diff --git a/app/views/exercise_banks/_poll_questions.json.jbuilder b/app/views/exercise_banks/_poll_questions.json.jbuilder
deleted file mode 100644
index 524864e60..000000000
--- a/app/views/exercise_banks/_poll_questions.json.jbuilder
+++ /dev/null
@@ -1,18 +0,0 @@
-json.question do
-  json.id question.id
-  json.question_number question.question_number
-  json.question_title question.question_title
-  json.question_type question.question_type
-  json.is_necessary question.is_necessary
-  if question.question_type == 2
-    json.max_choices question.max_choices
-    json.min_choices question.min_choices
-  end
-  json.answers do
-    json.array! answers do | a|
-      json.answer_id a.id
-      json.answer_position a.choice_position
-      json.answer_text a.choice_text.nil? ? "other_choices" : a.choice_text  ##
-    end
-  end
-end
\ No newline at end of file
diff --git a/app/views/exercise_banks/show.json.jbuilder b/app/views/exercise_banks/show.json.jbuilder
index 049886b50..bc7a6419c 100644
--- a/app/views/exercise_banks/show.json.jbuilder
+++ b/app/views/exercise_banks/show.json.jbuilder
@@ -28,9 +28,24 @@ else
     json.q_mains @poll_question_mains
   end
 
-  json.questions do
-    json.array! @exercise_questions do | question|
-      json.partial! "exercise_banks/poll_questions", question: question, answers: question.exercise_bank_choices
+  json.questions @exercise_questions do | question|
+    json.question do
+      json.id question.id
+      json.question_number question.question_number
+      json.question_title question.question_title
+      json.question_type question.question_type
+      json.is_necessary question.is_necessary
+      if question.question_type == 2
+        json.max_choices question.max_choices
+        json.min_choices question.min_choices
+      end
+      json.answers do
+        json.array! question.exercise_bank_choices do | a|
+          json.answer_id a.id
+          json.answer_position a.choice_position
+          json.answer_text a.choice_text.nil? ? "other_choices" : a.choice_text  ##
+        end
+      end
     end
   end
 end
\ No newline at end of file
diff --git a/app/views/users/question_banks/index.json.jbuilder b/app/views/users/question_banks/index.json.jbuilder
index bee5d1b5d..5d84ad388 100644
--- a/app/views/users/question_banks/index.json.jbuilder
+++ b/app/views/users/question_banks/index.json.jbuilder
@@ -1,9 +1,14 @@
 
 json.count @count
 json.course_list @course_lists, partial: 'users/question_banks/shared/course_list', as: :course_list
-json.question_banks do
-  json.array! @question_banks do |question_bank|
-    json.partial! 'users/question_banks/shared/question_bank', locals: { question_bank: question_bank }
-    json.solve_count @solve_count_map.fetch(question_bank.id, 0)
-  end
+
+json.question_banks @question_banks do |question_bank|
+  json.id question_bank.id
+  json.name question_bank.name
+  json.is_public question_bank.is_public
+  json.quotes_count question_bank.quotes
+  json.creator_name question_bank.user.name
+  json.course_list_name question_bank.course_list.name
+  json.updated_at question_bank.updated_at
+  json.solve_count @solve_count_map.fetch(question_bank.id, 0)
 end