diff --git a/app/controllers/exercises_controller.rb b/app/controllers/exercises_controller.rb
index 5db704fce..3be35345e 100644
--- a/app/controllers/exercises_controller.rb
+++ b/app/controllers/exercises_controller.rb
@@ -354,6 +354,7 @@ class ExercisesController < ApplicationController
             #   question_bank = QuestionBank.new ques_params
             #   question_bank.save
             # end
+            exercise.update_attributes!(exercise_bank_id: current_ex_bank.id)
           end
           # 试卷的问题的输入
           exercise.exercise_questions.each do |q|
diff --git a/app/controllers/graduation_tasks_controller.rb b/app/controllers/graduation_tasks_controller.rb
index 727bdb77e..fe7511e29 100644
--- a/app/controllers/graduation_tasks_controller.rb
+++ b/app/controllers/graduation_tasks_controller.rb
@@ -301,6 +301,7 @@ class GraduationTasksController < ApplicationController
                                               course_list_id: @course.course_list_id)
 
             task_bank.save!
+            task.update_attributes!(gtask_bank_id: task_bank.id)
           end
           task.attachments.each do |attachment|
             att = attachment.copy
diff --git a/app/controllers/homework_commons_controller.rb b/app/controllers/homework_commons_controller.rb
index 081e2fdf1..8268382bd 100644
--- a/app/controllers/homework_commons_controller.rb
+++ b/app/controllers/homework_commons_controller.rb
@@ -1322,6 +1322,8 @@ class HomeworkCommonsController < ApplicationController
           else
             new_homework_bank = add_to_homework_bank_f homework
             new_homework_bank.save!
+
+            homework.update_attributes!(homework_bank_id: new_homework_bank.id)
           end
 
         rescue Exception => e
diff --git a/app/controllers/polls_controller.rb b/app/controllers/polls_controller.rb
index bc549cf1d..7cb7ee800 100644
--- a/app/controllers/polls_controller.rb
+++ b/app/controllers/polls_controller.rb
@@ -562,6 +562,7 @@ class PollsController < ApplicationController
               question_bank = QuestionBank.new ques_params
               question_bank.save
             end
+            poll.update_attributes!(exercise_bank_id: current_ex_bank.id)
           end
           # 问卷的问题的输入
           poll.poll_questions.each do |f|
diff --git a/app/controllers/student_works_controller.rb b/app/controllers/student_works_controller.rb
index 519bb7e7d..c26151a87 100644
--- a/app/controllers/student_works_controller.rb
+++ b/app/controllers/student_works_controller.rb
@@ -541,7 +541,7 @@ class StudentWorksController < ApplicationController
   def destroy_score
     score = @work.student_works_scores.find_by(id: params[:score_id])
     tip_exception("该评阅记录不存在") unless score.present?
-    tip_exception("该评阅记录不能删除") unless score.allow_delete(@current_user, @user_course_identity)
+    tip_exception("该评阅记录不能删除") unless score.allow_delete(current_user, @user_course_identity)
     begin
       score.destroy
       normal_status(0,"删除成功")
diff --git a/public/react/src/modules/courses/poll/PollNew.js b/public/react/src/modules/courses/poll/PollNew.js
index 70fff7e13..372a79ae6 100644
--- a/public/react/src/modules/courses/poll/PollNew.js
+++ b/public/react/src/modules/courses/poll/PollNew.js
@@ -2774,8 +2774,13 @@ class PollNew extends Component {
 										className="color-grey-9 fl">{item.question.question_type === 1 ? "(单选题)" : item.question.question_type === 2 ? "(多选题)" : "(主观题)"}</span>
 									<span
 										className="selectAnswer ml10">{item.question.is_necessary === 1 ? "必答" : item.question.question_type === 2 ? "选答" : "选答"}</span>
-									<span style={{color: "#4B4B4B"}}
-												className="font-16 mt10 ml10">{(item.question.min_choices === undefined && item.question.max_choices === undefined ? "不限制" : item.question.min_choices === null && item.question.max_choices === null ? "不限制" : item.question.min_choices === 0 && item.question.max_choices === 0 ? "": item.question.min_choices === "null" && item.question.max_choices === "null" ? "不限制"  : "可选" + item.question.min_choices + "-" + (item.question.max_choices===undefined||item.question.max_choices===null||item.question.max_choices===""||item.question.max_choices==="null"?item.question.answers.length:item.question.max_choices) + "项")}</span>
+									{
+										item.question.question_type === 2?
+											<span style={{color: "#4B4B4B"}}
+														className="font-16 mt10 ml10">{(item.question.min_choices === undefined && item.question.max_choices === undefined ? "不限制" : item.question.min_choices === null && item.question.max_choices === null ? "不限制" : item.question.min_choices === 0 && item.question.max_choices === 0 ? "": item.question.min_choices === "null" && item.question.max_choices === "null" ? "不限制"  : "可选" +(item.question.min_choices===undefined||item.question.min_choices===null||item.question.min_choices===""||item.question.min_choices==="null"?2:item.question.min_choices) + "-" + (item.question.max_choices===undefined||item.question.max_choices===null||item.question.max_choices===""||item.question.max_choices==="null"?item.question.answers.length:item.question.max_choices) + "项")}</span>
+											: ""
+									}
+
 									{
 										polls_status === undefined || polls_status === 1 ?
 											<span className="fr">