diff --git a/app/controllers/exercise_answers_controller.rb b/app/controllers/exercise_answers_controller.rb
index e5d67b2d7..b1e23071b 100644
--- a/app/controllers/exercise_answers_controller.rb
+++ b/app/controllers/exercise_answers_controller.rb
@@ -14,19 +14,15 @@ class ExerciseAnswersController < ApplicationController
         else
           ea = @exercise_question.exercise_answers.search_answer_users("user_id",current_user.id)  #试卷的当前用户的答案
           if q_type == Exercise::SINGLE || q_type == Exercise::JUDGMENT  #选择题（单选）/判断题
-            ea_choice = ea.search_exercise_answer("exercise_choice_id",choice_id).first
-            answer_option = {
+            if ea.exists?
+              ea.first.update_attribute(:exercise_choice_id,choice_id )
+            else
+              answer_option = {
                 :user_id => current_user.id,
                 :exercise_question_id => @exercise_question.id,
                 :exercise_choice_id => choice_id,
                 :answer_text => ""
-            }
-            if ea_choice.present? #如果当前用户的答案存在，再次点击，即为删除
-              ea_choice.destroy
-            else
-              if @exercise_question.exercise_standard_answers.count <= 1  #单选题的时候
-                ea.first.destroy if ea.present?
-              end
+              }
               ex_a = ExerciseAnswer.new(answer_option)
               ex_a.save!
             end
diff --git a/app/decorators/tiding_decorator.rb b/app/decorators/tiding_decorator.rb
index 4003ffb94..130e7f4b8 100644
--- a/app/decorators/tiding_decorator.rb
+++ b/app/decorators/tiding_decorator.rb
@@ -344,7 +344,7 @@ module TidingDecorator
   end
 
   def resubmit_student_work_content
-    I18n.t(locale_format) % container&.homework_common.try(:name)
+    I18n.t(locale_format) % parent_container.try(:name)
   end
 
   def student_works_score_content
diff --git a/app/services/subject_search_service.rb b/app/services/subject_search_service.rb
index 2366cecc2..f69c56c88 100644
--- a/app/services/subject_search_service.rb
+++ b/app/services/subject_search_service.rb
@@ -12,7 +12,7 @@ class SubjectSearchService < ApplicationService
     type = params[:type] || "all"
 
     if type == "mine"
-      @subjects = User.current.shixuns.visible.unhidden
+      @subjects = User.current.subjects.visible.unhidden
     else
       @subjects = Subject.visible.unhidden
     end
diff --git a/app/views/shixun_lists/index.json.jbuilder b/app/views/shixun_lists/index.json.jbuilder
index 79ce4b09c..08baeabf9 100644
--- a/app/views/shixun_lists/index.json.jbuilder
+++ b/app/views/shixun_lists/index.json.jbuilder
@@ -11,12 +11,12 @@ json.shixun_list do
     atta_reg = /!\[.*]\(\/api\/attachments\/\d+\)/
 
     highlights[:description]&.first&.sub!(reg, '')
-    highlights[:description]&.map{|des| des.gsub!(atta_reg, '')}
+    highlights[:description]&.map{|des| des.gsub(atta_reg, '')}
     highlights[:content]&.first&.sub!(reg, '')
-    highlights[:content]&.map{|des| des.gsub!(atta_reg, '')}
+    highlights[:content]&.map{|des| des.gsub(atta_reg, '')}
 
     json.title highlights.delete(:name)&.join('...') || obj.searchable_title
-    json.description highlights[:description]&.join('...') || Util.extract_content(obj.description)[0..300]&.sub!(atta_reg, '')
+    json.description highlights[:description]&.join('...') || Util.extract_content(obj.description)[0..300]&.gsub(atta_reg, '')
 
     json.content highlights
     json.level level_to_s(obj.trainee)
diff --git a/app/views/subject_lists/index.json.jbuilder b/app/views/subject_lists/index.json.jbuilder
index 6992deb1f..63ee6dcbc 100644
--- a/app/views/subject_lists/index.json.jbuilder
+++ b/app/views/subject_lists/index.json.jbuilder
@@ -7,15 +7,15 @@ json.subject_list do
     # 去除开头标点符号
     reg = /^[，。？：；‘’！“”—……、]/
     # 附件的替换
-    atta_reg = /!\[.*]\(\/api\/attachments\/\d+\)/
+    atta_reg = /!\[.*\]\(\/api\/attachments\/\d+\)/
 
     highlights[:description]&.first&.sub!(reg, '')
-    highlights[:description]&.map{|des| des.gsub!(atta_reg, '')}
+    highlights[:description]&.map{|des| des.gsub(atta_reg, '')}
     highlights[:content]&.first&.sub!(reg, '')
-    highlights[:content]&.map{|des| des.gsub!(atta_reg, '')}
+    highlights[:content]&.map{|des| des.gsub(atta_reg, '')}
 
     json.title highlights.delete(:name)&.join('...') || obj.searchable_title
-    json.description highlights[:description]&.join('...') || Util.extract_content(obj.description)[0..300]&.sub!(atta_reg, '')
+    json.description highlights[:description]&.join('...') || Util.extract_content(obj.description)[0..300]&.gsub(atta_reg, '')
 
     json.content highlights
   end
diff --git a/public/react/src/modules/message/js/MessagSub.js b/public/react/src/modules/message/js/MessagSub.js
index 88613513c..f92ea71c4 100644
--- a/public/react/src/modules/message/js/MessagSub.js
+++ b/public/react/src/modules/message/js/MessagSub.js
@@ -488,10 +488,24 @@ class MessagSub extends Component {
 			case "SubjectStartCourse":
 				return window.open(`/paths/${item.container_id}`);
 			case "ResubmitStudentWork":
-				return window.open(`/courses/${item.belong_container_id}/graduation_tasks/${item.container_id}/appraise`);
+				if (item.homework_type === "normal") {
+					//普通作业
+					return window.open(`/courses/${item.belong_container_id}/common_homeworks/${item.parent_container_id}/${item.container_id}/appraise`);
+				}
+				if (item.homework_type === "group") {
+					//分组作业
+					return window.open(`/courses/${item.belong_container_id}/group_homeworks/${item.parent_container_id}/${item.container_id}/appraise`);
+				}
 			case "AdjustScore":
 				//belong_container_id course的id
-				return window.open(`/courses/${item.belong_container_id}/graduation_tasks/${item.parent_container_id}`);
+				if (item.homework_type === "normal") {
+					//普通作业
+					return window.open(`/courses/${item.belong_container_id}/common_homeworks/${item.parent_container_id}`);
+				}
+				if (item.homework_type === "group") {
+					//分组作业
+					return window.open(`/courses/${item.belong_container_id}/group_homeworks/${item.parent_container_id}`);
+				}
 			default :
 				return
 		}