diff --git a/app/views/exercise/_exercise_student.html.erb b/app/views/exercise/_exercise_student.html.erb
index 0b12b917e..af9896b01 100644
--- a/app/views/exercise/_exercise_student.html.erb
+++ b/app/views/exercise/_exercise_student.html.erb
@@ -3,35 +3,55 @@
         $("#RSide").removeAttr("id");
         $("#homework_page_right").css("min-height",$("#LSide").height()-30);
         $("#Container").css("width","1000px");
+        var time = <%=exercise.time %>;
+        var total_seconds = time * 60;
+        getTime(total_seconds);
     });
-    function getTime() {
-        
+    function getTime(total_seconds) {
+        start_time = new Date($("#start_time").html());
+        end_time = start_time + 60*60*<%=exercise.time %>;
+        now = new Date();
+        //start = new Date(start_time);
+        //end_time = start_time;
+        var total_seconds = total_seconds - 1;
+        var hours = total_seconds / 60 / 60;
+        var hoursRound = Math.floor(hours);
+        var minutes = total_seconds /60 - (60 * hoursRound);
+        var minutesRound = Math.floor(minutes);
+        var seconds =  total_seconds - (60 * 60 * hoursRound) - (60 * minutesRound);
+        var secondsRound = Math.round(seconds);
+        $("#rest_hours").html(hoursRound);
+        $("#rest_minutes").html(minutesRound);
+        $("#rest_seconds").html(secondsRound);
+        if(total_seconds >0) {
+            setTimeout("getTime("+total_seconds+");", 1000);
+        }
     }
 </script>
 <div class="homepageRight mt0 ml10">
   <div class="resources">
     <div class="testStatus"><!--头部显示 start-->
       <h1 class="ur_page_title" id="polls_name_h"><%= exercise.exercise_name%></h1>
+      <div id="start_time" style="display: none"><%=exercise_user.start_at %></div>
       <div class="fontGrey2">
-        <span class="mr130">开始时间：<%=format_time(exercise_user.start_at.to_s) %></span>
+        <span class="mr130">开始时间：<%=format_time(exercise_user.start_at.to_s)%></span>
         <span class="mr130">测验时长：<%=exercise.time %>分钟</span>
-        <span class="fr">剩余时长：<span class="c_red">1</span>&nbsp;小时&nbsp;<span class="c_red">30</span>&nbsp;分钟&nbsp;<span class="c_red">0</span>&nbsp;秒</span>
+        <span class="fr">剩余时长：<span class="c_red" id="rest_hours"></span>&nbsp;小时&nbsp;<span class="c_red" id="rest_minutes"></span>&nbsp;分钟&nbsp;<span class="c_red" id="rest_seconds"></span>&nbsp;秒</span>
       </div>
       <div class="testDesEdit mt5"><%= exercise.exercise_description.nil? ? "" : exercise.exercise_description.html_safe%></div>
       <div class="cl"></div>
       <div class="cl"></div>
     </div>
-    <% mc_question_list = exercise.exercise_questions.where("question_type=1") %>
-    <% mcq_question_list = exercise.exercise_questions.where("question_type=2") %>
-    <% single_question_list = exercise.exercise_questions.where("question_type=3") %>
+    <% mc_question_list = exercise.exercise_questions.where("question_type=1").shuffle %>
+    <% mcq_question_list = exercise.exercise_questions.where("question_type=2").shuffle %>
+    <% single_question_list = exercise.exercise_questions.where("question_type=3").shuffle %>
     <div class="testStatus" id="mc_question_list" style="display: <%=mc_question_list.count > 0 ? "" : "none" %>">
       <h3 class="fontGrey3">单选题</h3>
-      <% mc_question_list.each do |exercise_question| %>
+      <% mc_question_list.each_with_index do |exercise_question, list_index| %>
           <div id="poll_questions_<%= exercise_question.id%>">
             <div id="show_poll_questions_<%= exercise_question.id %>">
               <div>
-                <div class="testEditTitle"> 第<%= exercise_question.question_number%>题.(<%= exercise_question.question_score %>分)<br />
-                  <%= exercise_question.question_title %>
+                <div class="testEditTitle"> 第<%= list_index+1%>题：<%= exercise_question.question_title %>&nbsp;&nbsp;(<%= exercise_question.question_score %>分)
                 </div>
                 <div class="cl"></div>
                 <div class="ur_inputs">
@@ -65,7 +85,7 @@
                                       });
                                   }
                               </script>
-                              <%= radio_button "poll_vote","poll_answer_id",exercise_choice.id,:class=>"ur_radio",:onclick =>"click_#{exercise_choice.id}(this);return false;",:checked => answer_be_selected?(exercise_choice,User.current),:disabled => !@can_edit_excercise %>
+                              <%= radio_button "exercise",exercise_question.id.to_s+"exercise_choice_id",exercise_choice.id,:class=>"ur_radio",:onclick =>"click_#{exercise_choice.id}(this);return false;",:checked => answer_be_selected?(exercise_choice,User.current),:disabled => !@can_edit_excercise %>
                               <%= convert_to_char((index+1).to_s)%>&nbsp;&nbsp;<%= exercise_choice.choice_text%>
                             </label>
                           </td>
@@ -81,12 +101,11 @@
     </div>
     <div class="testStatus" id="mcq_question_list" style="display: <%=mcq_question_list.count > 0 ? "" : "none" %>">
       <h3 class="fontGrey3">多选题</h3>
-      <% mcq_question_list.each do |exercise_question| %>
+      <% mcq_question_list.each_with_index do |exercise_question,list_index| %>
           <div id="poll_questions_<%= exercise_question.id%>">
             <div id="show_poll_questions_<%= exercise_question.id %>">
               <div>
-                <div class="testEditTitle"> 第<%= exercise_question.question_number%>题.(<%= exercise_question.question_score %>分)<br />
-                  <%= exercise_question.question_title %>
+                <div class="testEditTitle"> 第<%= list_index+1%>题：<%= exercise_question.question_title %>&nbsp;&nbsp;(<%= exercise_question.question_score %>分)
                 </div>
                 <div class="cl"></div>
                 <div class="ur_inputs">
@@ -136,12 +155,11 @@
     </div>
     <div class="testStatus" id="single_question_list" style="display: <%=single_question_list.count > 0 ? "" : "none" %>">
       <h3 class="fontGrey3">填空题</h3>
-      <% single_question_list.each do |exercise_question| %>
+      <% single_question_list.each_with_index do |exercise_question, list_index| %>
           <div id="poll_questions_<%= exercise_question.id%>">
             <div id="show_poll_questions_<%= exercise_question.id %>">
               <div>
-                <div class="testEditTitle"> 第<%= exercise_question.question_number%>题.(<%= exercise_question.question_score %>分)<br />
-                  <%= exercise_question.question_title %>
+                <div class="testEditTitle"> 第<%= list_index+1%>题：<%= exercise_question.question_title %>&nbsp;&nbsp;(<%= exercise_question.question_score %>分)
                 </div>
                 <div class="cl"></div>
                 <div>
@@ -158,13 +176,13 @@
                               },
                               success: function (data) {
                                   var dataObj = eval(data);
-//                                obj.value = dataObj.text;
+                                  obj.value = dataObj.text;
                               }
                           });
 
                       }
                   </script>
-                  <input class="fillInput" placeholder="在此填入答案" type="text" value="<%= get_anwser_vote_text(exercise_question.id,User.current.id).html_safe %>" onblur="onblur_<%= exercise_question.id %>(this);" <%= @can_edit_poll?"":"disabled=disabled" %>>
+                  <input class="fillInput" placeholder="在此填入答案" type="text" value="<%= get_anwser_vote_text(exercise_question.id,User.current.id).html_safe %>" onblur="onblur_<%= exercise_question.id %>(this);" <%= @can_edit_excercise?"":"disabled=disabled" %>>
                 </div>
               </div>
             </div>
diff --git a/app/views/exercise/_exercise_student_result.html.erb b/app/views/exercise/_exercise_student_result.html.erb
index 8a723d75c..9ce136667 100644
--- a/app/views/exercise/_exercise_student_result.html.erb
+++ b/app/views/exercise/_exercise_student_result.html.erb
@@ -24,12 +24,11 @@
     <% single_question_list = exercise.exercise_questions.where("question_type=3") %>
     <div class="testStatus" id="mc_question_list" style="display: <%=mc_question_list.count > 0 ? "" : "none" %>">
       <h3 class="fontGrey3">单选题</h3>
-      <% mc_question_list.each do |exercise_question| %>
+      <% mc_question_list.each_with_index do |exercise_question, list_index| %>
           <div id="poll_questions_<%= exercise_question.id%>">
             <div id="show_poll_questions_<%= exercise_question.id %>">
               <div>
-                <div class="testEditTitle"> 第<%= exercise_question.question_number%>题.(<%= exercise_question.question_score %>分)<br />
-                  <%= exercise_question.question_title %>
+                <div class="testEditTitle"> 第<%= list_index+1%>题：<%= exercise_question.question_title %>&nbsp;&nbsp;(<%= exercise_question.question_score %>分)
                   <span class="ml15 c_red">
                     <% if exercise_question.exercise_standard_answers.first.exercise_choice_id == exercise_question.exercise_answers.where("#{ExerciseAnswer.table_name}.user_id = #{User.current.id}.first.exercise_choice_id ") %>
                         √
@@ -62,12 +61,11 @@
     </div>
     <div class="testStatus" id="mcq_question_list" style="display: <%=mcq_question_list.count > 0 ? "" : "none" %>">
       <h3 class="fontGrey3">多选题</h3>
-      <% mcq_question_list.each do |exercise_question| %>
+      <% mcq_question_list.each_wtih_index do |exercise_question, list_index| %>
           <div id="poll_questions_<%= exercise_question.id%>">
             <div id="show_poll_questions_<%= exercise_question.id %>">
               <div>
-                <div class="testEditTitle"> 第<%= exercise_question.question_number%>题.(<%= exercise_question.question_score %>分)<br />
-                  <%= exercise_question.question_title %>
+                <div class="testEditTitle"> 第<%= list_index+1%>题：<%= exercise_question.question_title %>&nbsp;&nbsp;(<%= exercise_question.question_score %>分)
                   <span class="ml15 c_red">
                     <% if exercise_question.exercise_standard_answers.first.exercise_choice_id == exercise_question.exercise_answers.where("#{ExerciseAnswer.table_name}.user_id = #{User.current.id}.first.exercise_choice_id ") %>
                         √
@@ -100,12 +98,11 @@
     </div>
     <div class="testStatus" id="single_question_list" style="display: <%=single_question_list.count > 0 ? "" : "none" %>">
       <h3 class="fontGrey3">填空题</h3>
-      <% single_question_list.each do |exercise_question| %>
+      <% single_question_list.each_with_index do |exercise_question,list_index| %>
           <div id="poll_questions_<%= exercise_question.id%>">
             <div id="show_poll_questions_<%= exercise_question.id %>">
               <div>
-                <div class="testEditTitle"> 第<%= exercise_question.question_number%>题.(<%= exercise_question.question_score %>分)<br />
-                  <%= exercise_question.question_title %>
+                <div class="testEditTitle"> 第<%= list_index+1%>题：<%= exercise_question.question_title %>&nbsp;&nbsp;(<%= exercise_question.question_score %>分)
                   <span class="ml15 c_red">
                     <% if exercise_question.exercise_standard_answers.first.exercise_choice_id == exercise_question.exercise_answers.where("#{ExerciseAnswer.table_name}.user_id = #{User.current.id}.first.exercise_choice_id ") %>
                         √
diff --git a/app/views/exercise/_exercise_submit.html.erb b/app/views/exercise/_exercise_submit.html.erb
index e9c26a0b5..acbbea244 100644
--- a/app/views/exercise/_exercise_submit.html.erb
+++ b/app/views/exercise/_exercise_submit.html.erb
@@ -1,4 +1,4 @@
-<%= form_for("",
+<%= form_for(exercise,
              :html => { :multipart => true },
              :url => {:controller => 'exercise',
                       :action => 'commit_exercise',
@@ -7,8 +7,10 @@
 <div class="ur_buttons">
   <a class="ur_button_submit" onclick="poll_submit();"> 提交 </a>
   <div class="polls_cha">
-    <input name="exercise[show_result]" value="1" type="checkbox" checked="true">
-    <label for="">允许学生查看测验结果</label>
+    <%= f.check_box :show_result, :value => exercise.show_result%>
+    <%= label_tag 'exercise_show_result', '允许学生查看测验结果' %>
+    <!--<input name="exercise[show_result]" value="<%#exercise.show_result %>" type="checkbox" checked="true">
+    <label for="">允许学生查看测验结果</label>-->
   </div>
 </div>
 <% end %>
diff --git a/app/views/exercise/_exercise_teacher.html.erb b/app/views/exercise/_exercise_teacher.html.erb
index b803519ce..606b14aae 100644
--- a/app/views/exercise/_exercise_teacher.html.erb
+++ b/app/views/exercise/_exercise_teacher.html.erb
@@ -22,12 +22,12 @@
     <% single_question_list = exercise.exercise_questions.where("question_type=3") %>
     <div class="testStatus" id="mc_question_list" style="display: <%=mc_question_list.count > 0 ? "" : "none" %>">
       <h3 class="fontGrey3">单选题</h3>
-      <% mc_question_list.each do |exercise_question| %>
+      <% mc_question_list.each_with_index do |exercise_question, list_index| %>
           <div id="poll_questions_<%= exercise_question.id%>">
             <div id="show_poll_questions_<%= exercise_question.id %>">
               <div>
-                <div class="testEditTitle"> 第<%= exercise_question.question_number%>题.(<%= exercise_question.question_score %>分)<br />
-                  <%= exercise_question.question_title %><br />
+                <div class="testEditTitle"> 第<%= list_index+1%>题：<%= exercise_question.question_title %>&nbsp;&nbsp;(<%= exercise_question.question_score %>分)
+                  <br />
                   标准答案：<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) %>
                 </div>
                 <div class="cl"></div>
@@ -54,12 +54,12 @@
     </div>
     <div class="testStatus" id="mcq_question_list" style="display: <%=mcq_question_list.count > 0 ? "" : "none" %>">
       <h3 class="fontGrey3">多选题</h3>
-      <% mcq_question_list.each do |exercise_question| %>
+      <% mcq_question_list.each_with_index do |exercise_question, index| %>
           <div id="poll_questions_<%= exercise_question.id%>">
             <div id="show_poll_questions_<%= exercise_question.id %>">
               <div>
-                <div class="testEditTitle"> 第<%= exercise_question.question_number%>题.(<%= exercise_question.question_score %>分)<br />
-                  <%= exercise_question.question_title %><br />
+                <div class="testEditTitle"> 第<%= list_index+1%>题：<%= exercise_question.question_title %>&nbsp;&nbsp;(<%= exercise_question.question_score %>分)
+                  <br />
                   标准答案：<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) %>
                 </div>
                 <div class="cl"></div>
@@ -86,12 +86,12 @@
     </div>
     <div class="testStatus" id="single_question_list" style="display: <%=single_question_list.count > 0 ? "" : "none" %>">
       <h3 class="fontGrey3">填空题</h3>
-      <% single_question_list.each do |exercise_question| %>
+      <% single_question_list.each_with_index do |exercise_question, list_index| %>
           <div id="poll_questions_<%= exercise_question.id%>">
             <div id="show_poll_questions_<%= exercise_question.id %>">
               <div>
-                <div class="testEditTitle"> 第<%= exercise_question.question_number%>题.(<%= exercise_question.question_score %>分)<br />
-                  <%= exercise_question.question_title %><br />
+                <div class="testEditTitle"> 第<%= list_index+1%>题：<%= exercise_question.question_title %>&nbsp;&nbsp;(<%= exercise_question.question_score %>分)
+                  <br />
                   标准答案：<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s) %>
                 </div>
                 <div class="cl"></div>