diff --git a/app/helpers/exercises_helper.rb b/app/helpers/exercises_helper.rb
index 98a580ecc..ef9261990 100644
--- a/app/helpers/exercises_helper.rb
+++ b/app/helpers/exercises_helper.rb
@@ -148,7 +148,7 @@ module ExercisesHelper
               :choice_position => c.choice_position,
               :choice_text => c.choice_text,
               :choice_users_count => answer_users_count,
-              :choice_percent => answer_percent.round(1).to_s,
+              :choice_percent => answer_percent.round(2).to_s,
               :right_answer => right_answer
           }
           question_answer_infos.push(answer_option)
@@ -174,7 +174,7 @@ module ExercisesHelper
               :choice_position => index+1,
               :choice_text => s_choice_text,
               :choice_users_count => user_count,
-              :choice_percent => answer_percent.round(1).to_s,
+              :choice_percent => answer_percent.round(2).to_s,
               :right_answer => true
           }
           question_answer_infos.push(answer_option)
@@ -194,7 +194,7 @@ module ExercisesHelper
             :choice_position => (standard_answer_count + 1),
             :choice_text => "wrong",
             :choice_users_count => user_wrong_count,
-            :choice_percent => wrong_percent.round(1).to_s,
+            :choice_percent => wrong_percent.round(2).to_s,
             :right_answer => false
         }
         question_answer_infos.push(wrong_answer_position)
@@ -220,7 +220,7 @@ module ExercisesHelper
               :choice_position => index+1,
               :choice_text => index+1,
               :choice_users_count => s,
-              :choice_percent => score_percent.round(1).to_s,
+              :choice_percent => score_percent.round(2).to_s,
               :right_answer => right_answer
           }
           question_answer_infos.push(answer_option)
@@ -246,7 +246,7 @@ module ExercisesHelper
                 :choice_position => index+1,
                 :choice_text => index+1,
                 :choice_users_count => s,
-                :choice_percent => score_percent.round(1).to_s,
+                :choice_percent => score_percent.round(2).to_s,
                 :right_answer => right_answer
             }
             shixun_chas.push(answer_option)
@@ -256,7 +256,7 @@ module ExercisesHelper
               :cha_name => c.challenge.subject,
               :cha_position => c.position,
               :cha_details => shixun_chas,
-              :cha_percent => game_percent.round(1).to_s
+              :cha_percent => game_percent.round(2).to_s
           }
           question_answer_infos.push(shixun_new_chas)
         end
@@ -266,7 +266,7 @@ module ExercisesHelper
           :ques_less_title => ques_less_title,   #副标题，仅实训题才有
           :type => ex.question_type,
           :position => ex.question_number,
-          :percent => percent.round(1).to_s,
+          :percent => percent.round(2).to_s,
           :ques_effictive_counts => effictive_users_count,
           :ques_details => question_answer_infos
       }
diff --git a/public/react/src/modules/courses/members/teacherList.js b/public/react/src/modules/courses/members/teacherList.js
index 18d9a1adf..c22b490ef 100644
--- a/public/react/src/modules/courses/members/teacherList.js
+++ b/public/react/src/modules/courses/members/teacherList.js
@@ -164,16 +164,16 @@ function buildColumns(that) {
       },
     })
   }
-  // if(isAdminOrTeacher && hasGraduationModule) {
-  //   columns.unshift({
-  //   title: '',
-  //   dataIndex: 'course_member_id',
-  //   key: 'course_member_id',
-  //   render: (content, item, index) => {
-  //     return content ? <Checkbox value={content}></Checkbox> : ''
-  //   }
-  // })
-  // }
+  if(isAdminOrTeacher && hasGraduationModule) {
+    columns.unshift({
+      title: '',
+      dataIndex: 'course_member_id',
+      key: 'course_member_id',
+      render: (content, item, index) => {
+        return content ? <Checkbox value={content}></Checkbox> : ''
+      }
+    })  
+  }
   return columns
 }
 
@@ -688,6 +688,10 @@ class studentsList extends Component{
             line-height:30px!important;
             flex: 0 0 30px;
           }
+
+          .teacher_table .ant-table-thead > tr > th, .ant-table-tbody > tr > td {
+            padding: 16px 10px;
+          }
         `}</style>
         <div className="mt20 edu-back-white padding20 teacherList">
 
@@ -741,7 +745,7 @@ class studentsList extends Component{
             </div> }
           </div>}
           <Spin size="large" spinning={this.state.isSpin}>
-          <div className="clearfix stu_table">
+          <div className="clearfix stu_table teacher_table">
             {combineArray.length ? 
             <Checkbox.Group style={{ width: '100%' }} onChange={this.onCheckBoxChange} value={checkBoxValues}>          
             {/* pagination={{ current: page, total: total_count, pageSize:20, onChange: this.onPageChange }} */}