diff --git a/app/controllers/admins/import_course_members_controller.rb b/app/controllers/admins/import_course_members_controller.rb
new file mode 100644
index 000000000..42022b710
--- /dev/null
+++ b/app/controllers/admins/import_course_members_controller.rb
@@ -0,0 +1,10 @@
+class Admins::ImportCourseMembersController < Admins::BaseController
+  def create
+    return render_error('请上传正确的文件') if params[:file].blank? || !params[:file].is_a?(ActionDispatch::Http::UploadedFile)
+
+    result = Admins::ImportCourseMemberService.call(params[:file].to_io)
+    render_ok(result)
+  rescue Admins::ImportCourseMemberService::Error => ex
+    render_error(ex)
+  end
+end
\ No newline at end of file
diff --git a/app/controllers/student_works_controller.rb b/app/controllers/student_works_controller.rb
index 519bb7e7d..99a02106c 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)
     begin
       score.destroy
       normal_status(0,"删除成功")
diff --git a/app/imports/admins/import_course_member_excel.rb b/app/imports/admins/import_course_member_excel.rb
new file mode 100644
index 000000000..ddd3b01a1
--- /dev/null
+++ b/app/imports/admins/import_course_member_excel.rb
@@ -0,0 +1,20 @@
+class Admins::ImportCourseMemberExcel < BaseImportXlsx
+  Data = Struct.new(:student_id, :name, :course_id, :role, :course_group_name, :school_id)
+
+  def read_each(&block)
+    sheet.each_row_streaming(pad_cells: true, offset: 1) do |row|
+      data = row.map(&method(:cell_value))[0..5]
+      block.call Data.new(*data)
+    end
+  end
+
+  private
+
+  def check_sheet_valid!
+    raise_import_error('请按照模板格式导入') if sheet.row(1).size != 6
+  end
+
+  def cell_value(obj)
+    obj&.cell_value&.to_s&.strip
+  end
+end
diff --git a/app/models/student_works_score.rb b/app/models/student_works_score.rb
index f6c7b3e33..19043f7f8 100644
--- a/app/models/student_works_score.rb
+++ b/app/models/student_works_score.rb
@@ -13,9 +13,8 @@ belongs_to :student_work
     identity < Course::STUDENT || self.user == user || self.reviewer_role != 3
   end
 
-  def allow_delete current_user, identity
-    self.is_invalid && (current_user == self.user || identity < Course::STUDENT) ||
-        (self.score.nil? && current_user == self.user)
+  def allow_delete current_user
+    (self.is_invalid || self.score.nil?) && (current_user == self.user || current_user.admin?)
   end
 
   # 匿评分
diff --git a/app/services/admins/import_course_member_service.rb b/app/services/admins/import_course_member_service.rb
new file mode 100644
index 000000000..8f162902f
--- /dev/null
+++ b/app/services/admins/import_course_member_service.rb
@@ -0,0 +1,63 @@
+class Admins::ImportCourseMemberService < ApplicationService
+  Error = Class.new(StandardError)
+
+  attr_reader :file, :result
+
+  def initialize(file)
+    @file   = file
+    @result = { success: 0, fail: [] }
+  end
+
+  def call
+    raise Error, '文件不存在' if file.blank?
+
+    excel = Admins::ImportCourseMemberExcel.new(file)
+    excel.read_each(&method(:create_course_member))
+
+    result
+  rescue ApplicationImport::Error => ex
+    raise Error, ex.message
+  end
+
+  private
+
+  def create_course_member(data)
+    raise '课堂角色必须为 2、3、4' unless [2, 3, 4].include?(data.role.to_i)
+
+    user = User.joins(:user_extension).where(user_extensions: { student_id: data.student_id, school_id: data.school_id }).first
+    raise '该学号的用户不存在' if user.blank?
+    course = Course.find_by(id: data.course_id)
+    raise '该课堂不存在' if course.blank?
+
+    course_group = nil
+    if data.course_group_name.present?
+      course_group = course.course_groups.find_or_create_by!(name: data.course_group_name)
+    end
+
+    member = course.course_members.find_by(user_id: user.id, role: data.role.to_i)
+    # 如果已是课堂成员且是学生身份and不在指定的分班则移动到该分班
+    if member.present? && member.role == :STUDENT && course_group && member.course_group_id != course_group&.id
+      member.update!(course_group_id: course_group&.id)
+    elsif member.blank?
+      course.course_members.create!(user_id: user.id, role: data.role.to_i, course_group_id: course_group&.id)
+      extra =
+        case data.role.to_i
+        when 2 then 9
+        when 3 then 7
+        else 10
+        end
+
+      Tiding.create!(user_id: user.id, trigger_user_id: course.tea_id, container_id: course.id,
+                     container_type: 'TeacherJoinCourse', belong_container_id: course.id,
+                     belong_container_type: 'Course', tiding_type: 'System', extra: extra)
+    end
+
+    result[:success] += 1
+  rescue Exception => ex
+    fail_data = data.as_json
+    fail_data[:data] = fail_data.values.join(',')
+    fail_data[:message] = ex.message
+
+    result[:fail] << fail_data
+  end
+end
\ No newline at end of file
diff --git a/app/views/graduation_works/comment_list.json.jbuilder b/app/views/graduation_works/comment_list.json.jbuilder
index 51595c55b..77898c91d 100644
--- a/app/views/graduation_works/comment_list.json.jbuilder
+++ b/app/views/graduation_works/comment_list.json.jbuilder
@@ -15,7 +15,7 @@ json.comment_scores @comment_scores do |score|
   json.score score.score
   json.content score.comment
   json.is_invalid score.is_invalid
-  json.delete @current_user == score.user && (score.is_invalid || score.score.nil?)
+  json.delete (@current_user == score.user || @current_user.admin?) && (score.is_invalid || score.score.nil?)
   json.attachments score.attachments do |atta|
     json.partial! "attachments/attachment_simple", locals: {attachment: atta, delete: false}
   end
diff --git a/app/views/student_works/comment_list.json.jbuilder b/app/views/student_works/comment_list.json.jbuilder
index b14de2f31..1a089587b 100644
--- a/app/views/student_works/comment_list.json.jbuilder
+++ b/app/views/student_works/comment_list.json.jbuilder
@@ -23,7 +23,7 @@ json.comment_scores @comment_scores do |score|
   json.content score.comment
   json.appeal_status score.appeal_status
   json.is_invalid score.is_invalid
-  json.delete score.allow_delete(@current_user, @user_course_identity)
+  json.delete score.allow_delete(@current_user)
   json.attachments score.attachments do |atta|
     json.partial! "attachments/attachment_simple", locals: {attachment: atta, delete: false}
   end
diff --git a/config/routes.rb b/config/routes.rb
index c2da5fc63..22808ba10 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -804,6 +804,7 @@ Rails.application.routes.draw do
       end
     end
     resource :import_users, only: [:create]
+    resource :import_course_members, only: [:create]
 
     resources :library_applies, only: [:index] do
       member do
diff --git a/public/react/src/modules/courses/poll/PollNew.js b/public/react/src/modules/courses/poll/PollNew.js
index 9c00ae30d..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===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>
+									{
+										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">
diff --git a/public/react/src/modules/tpm/TPMIndexHOC.js b/public/react/src/modules/tpm/TPMIndexHOC.js
index a81a273bb..52eda5901 100644
--- a/public/react/src/modules/tpm/TPMIndexHOC.js
+++ b/public/react/src/modules/tpm/TPMIndexHOC.js
@@ -471,6 +471,9 @@ export function TPMIndexHOC(WrappedComponent) {
               .indexHOC > .ant-spin-nested-loading {
                 background: #000;
               }
+              .indexHOC > .ant-spin-nested-loading > div > .ant-spin .ant-spin-dot {
+                top: 50% !important;
+              }
 
               .globalSpin .ant-spin-text {
                 text-shadow: none !important;