diff --git a/app/views/exercise/_edit_MC.html.erb b/app/views/exercise/_edit_MC.html.erb
index 5a406537b..c769fe634 100644
--- a/app/views/exercise/_edit_MC.html.erb
+++ b/app/views/exercise/_edit_MC.html.erb
@@ -18,7 +18,7 @@
         }
     </script>
 
-    <div class="questionContainer">
+    <div class="questionContainer" style="width: 680px;">
       <div class="ur_editor_title">
         <label>问题：&nbsp;&nbsp;</label>
         <input name="question_type" value="<%=exercise_question.question_type %>" type="hidden">
diff --git a/app/views/exercise/_edit_MCQ.html.erb b/app/views/exercise/_edit_MCQ.html.erb
index bd7270688..01e63cb24 100644
--- a/app/views/exercise/_edit_MCQ.html.erb
+++ b/app/views/exercise/_edit_MCQ.html.erb
@@ -18,7 +18,7 @@
         }
     </script>
 
-    <div class="questionContainer">
+    <div class="questionContainer" style="width: 680px;">
       <div class="ur_editor_title">
         <label>问题：&nbsp;&nbsp;</label>
         <input name="question_type" value="<%=exercise_question.question_type %>" type="hidden">
diff --git a/app/views/exercise/_edit_single.html.erb b/app/views/exercise/_edit_single.html.erb
index 070e99343..1048b2145 100644
--- a/app/views/exercise/_edit_single.html.erb
+++ b/app/views/exercise/_edit_single.html.erb
@@ -17,7 +17,7 @@
         }
     </script>
 
-    <div class="questionContainer">
+    <div class="questionContainer" style="width: 680px;">
       <div class="ur_editor_title">
         <label>问题：&nbsp;&nbsp;</label>
         <input name="question_type" value="<%=exercise_question.question_type %>" type="hidden">
diff --git a/app/views/exercise/_exercise_form.html.erb b/app/views/exercise/_exercise_form.html.erb
index 4ac594d76..863f68a72 100644
--- a/app/views/exercise/_exercise_form.html.erb
+++ b/app/views/exercise/_exercise_form.html.erb
@@ -60,60 +60,74 @@
     }
 
     function insert_MC(quest_type,quest_num,quest_id){
-        $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html(
-                        '<%= form_for(ExerciseQuestion.new,
-             :html => { :multipart => true },
-             :url => {:controller => 'exercise',
-                      :action => 'create_exercise_question',
-                      :course_id => @course.id
-             },:remote=>true ) do |f|%>'+
-                        ' <div class="ur_editor radio"> '+
-                        '<div class="ur_editor_title"> '+
-                        '<label>问题：&nbsp;&nbsp;</label>'+
-                        '<input type="hidden" name="quest_id" value="'+quest_id+'"/>'+
-                        '<input type="hidden" name="quest_num" value="'+quest_num+'"/>'+
-                        '<input type="hidden" name="question_type" value="1"/>'+
-                        '<input  maxlength="250" class="ur_question_title" type="text" name="poll_questions_title" id="poll_questions_title" placeholder="请输入单选题标题"/>'+
-                        '<input type="checkbox" name="is_necessary" value="true" checked/>'+
-                        '<label>必答</label>'+
-                        '</div>'+
-                        '<div class="ur_editor_content">'+
-                        '<ul>'+
-                        '<li class="ur_item">'+
-                        '<label>选项<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                        '<input maxlength="200" type="text" name="question_answer[0]" placeholder="输入选项内容"/>'+
-                        '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
-                        '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
-                        '</li>'+
-                        '<div class="cl"></div>'+
-                        '<li class="ur_item">'+
-                        '<label>选项<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                        '<input maxlength="200" type="text" name="question_answer[1]" placeholder="输入选项内容"/>'+
-                        '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
-                        '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
-                        '</li>'+
-                        '<div class="cl"></div>'+
-                        '<li class="ur_item">'+
-                        '<label>选项<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                        '<input maxlength="200" type="text" name="question_answer[2]" placeholder="输入选项内容"/>'+
-                        '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
-                        '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
-                        '</li>'+
-                        '<div class="cl"></div>'+
-                        '</ul>'+
-                        '</div>'+
-                        '<div class="ur_editor_footer">'+
-                        '<a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="add_poll_question($(this));">'+
-                        '<%= l(:label_button_ok)%>'+
-                        '</a>'+
-                        '<a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">'+
-                        '<%= l(:button_cancel)%>'+
-                        '</a>'+
-                        '</div>'+
-                        '<div class="cl"></div>'+
-                        '</div>'+
-                        '<% end%>'
-        );
+        if($.trim($("#insert_new_poll_question_"+quest_type+"_"+quest_id).html()) == "") {
+            $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html(
+                            '<%= form_for(ExerciseQuestion.new,:html=>{:multipart=>true},:url=>{:controller=> 'exercise',:action=>'create_exercise_question',:course_id=>@course.id},:remote=>true) do |f|%>'+
+                            ' <div class="questionContainer" style="width: 680px;"> '+
+                            '<div class="ur_editor_title"> '+
+                            '<label>问题：&nbsp;&nbsp;</label>'+
+                            '<input type="hidden" name="quest_id" value="'+quest_id+'"/>'+
+                            '<input type="hidden" name="quest_num" value="'+quest_num+'"/>'+
+                            '<input type="hidden" name="question_type" value="1"/>'+
+                            '<input name="question_title" id="poll_questions_title" class="questionTitle" placeholder="请输入单选题题目" type="text"/>'+
+                            '</div>'+
+                            '<div class="ur_editor_content">'+
+                            '<ul>'+
+                            '<li class="ur_item">'+
+                            '<label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input type="text" name="question_score" style="width:40px; text-align:center; padding-left:0px;"/>分'+
+                            '</li>'+
+                            '<li class="ur_item">'+
+                            '<label>选项A<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input maxlength="200" type="text" name="question_answer[0]" placeholder="输入选项内容"/>'+
+                            '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                            '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
+                            '</li>'+
+                            '<div class="cl"></div>'+
+                            '<li class="ur_item">'+
+                            '<label>选项B<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input maxlength="200" type="text" name="question_answer[1]" placeholder="输入选项内容"/>'+
+                            '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                            '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
+                            '</li>'+
+                            '<div class="cl"></div>'+
+                            '<li class="ur_item">'+
+                            '<label>选项C<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input maxlength="200" type="text" name="question_answer[2]" placeholder="输入选项内容"/>'+
+                            '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                            '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
+                            '</li>'+
+                            '<div class="cl"></div>'+
+                            '<li class="ur_item">'+
+                            '<label>选项D<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input maxlength="200" type="text" name="question_answer[3]" placeholder="输入选项内容"/>'+
+                            '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                            '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
+                            '</li>'+
+                            '<div class="cl"></div>'+
+                            '<li class="ur_item">'+
+                            '<label>标准答案<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input name="exercise_choice" placeholder="若标准答案为A，在此输入A即可" type="text">'+
+                            '</li>'+
+                            '<div class="cl"></div>'+
+                            '</ul>'+
+                            '</div>'+
+                            '<div class="ur_editor_footer">'+
+                            '<a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="add_poll_question($(this));">'+
+                            '保存'+
+                            '</a>'+
+                            '<a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">'+
+                            '<%= l(:button_cancel)%>'+
+                            '</a>'+
+                            '</div>'+
+                            '<div class="cl"></div>'+
+                            '</div>'+
+                            '<% end%>'
+            );
+        }
+        else {
+            $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html("");
+        }
         $("#poll_questions_title").focus();
     }
 
@@ -123,60 +137,73 @@
     }
 
     function insert_MCQ(quest_type,quest_num,quest_id){
-        $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html(
-                        '<%= form_for(ExerciseQuestion.new,
-             :html => { :multipart => true },
-             :url => {:controller => 'exercise',
-                      :action => 'create_exercise_question',
-                      :course_id => @course.id
-             },:remote=>true ) do |f|%>'+
-                        '<div class="ur_editor checkbox">'+
-                        '<div class="ur_editor_title">'+
-                        '<label>问题：&nbsp;&nbsp;</label>'+
-                        '<input type="hidden" name="quest_id" value="'+quest_id+'"/>'+
-                        '<input type="hidden" name="quest_num" value="'+quest_num+'"/>'+
-                        '<input type="hidden" name="question_type" value="2"/>'+
-                        '<input maxlength="250" class="ur_question_title" type="text" name="poll_questions_title" id="poll_questions_title" placeholder="请输入多选题标题"/>'+
-                        '<input type="checkbox" name="is_necessary" value="true" checked/>'+
-                        '<label>必答</label>'+
-                        '</div>'+
-                        '<div class="ur_editor_content">'+
-                        '<ul>'+
-                        '<li class="ur_item">'+
-                        '<label>选项<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                        '<input maxlength="200" type="text" name="question_answer[0]" placeholder="输入选项内容"/>'+
-                        '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
-                        '<a class="icon_remove"  title="删除"" onclick="remove_single_answer($(this))"></a>'+
-                        '</li>'+
-                        '<div class="cl"></div>'+
-                        '<li class="ur_item">'+
-                        '<label>选项<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                        '<input maxlength="200" type="text" name="question_answer[1]" placeholder="输入选项内容"/>'+
-                        '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
-                        '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
-                        '</li>'+
-                        '<div class="cl"></div>'+
-                        '<li class="ur_item">'+
-                        '<label>选项<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
-                        '<input maxlength="200" type="text" name="question_answer[2]" placeholder="输入选项内容"/>'+
-                        '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
-                        '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
-                        '</li>'+
-                        '<div class="cl"></div>'+
-                        '</ul>'+
-                        '</div>'+
-                        '<div class="ur_editor_footer">'+
-                        '<a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="add_poll_question($(this));">'+
-                        '<%= l(:label_button_ok)%>'+
-                        '</a>'+
-                        '<a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">'+
-                        '<%= l(:button_cancel)%>'+
-                        '</a>'+
-                        '</div>'+
-                        '<div class="cl"></div>'+
-                        '</div>'+
-                        '<% end%>'
-        );
+        if($.trim($("#insert_new_poll_question_"+quest_type+"_"+quest_id).html()) == ""){
+            $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html(
+                            '<%= form_for(ExerciseQuestion.new,:html=>{:multipart=>true},:url=>{:controller=> 'exercise',:action=>'create_exercise_question',:course_id=>@course.id},:remote=>true) do |f|%>'+
+                            ' <div class="questionContainer" style="width: 680px;"> '+
+                            '<div class="ur_editor_title"> '+
+                            '<label>问题：&nbsp;&nbsp;</label>'+
+                            '<input type="hidden" name="quest_id" value="'+quest_id+'"/>'+
+                            '<input type="hidden" name="quest_num" value="'+quest_num+'"/>'+
+                            '<input type="hidden" name="question_type" value="2"/>'+
+                            '<input name="question_title" id="poll_questions_title" class="questionTitle" placeholder="请输入多选题题目" type="text"/>'+
+                            '</div>'+
+                            '<div class="ur_editor_content">'+
+                            '<ul>'+
+                            '<li class="ur_item">'+
+                            '<label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input type="text" name="question_score" style="width:40px; text-align:center; padding-left:0px;"/>分'+
+                            '</li>'+
+                            '<li class="ur_item">'+
+                            '<label>选项A<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input maxlength="200" type="text" name="question_answer[0]" placeholder="输入选项内容"/>'+
+                            '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                            '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
+                            '</li>'+
+                            '<div class="cl"></div>'+
+                            '<li class="ur_item">'+
+                            '<label>选项B<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input maxlength="200" type="text" name="question_answer[1]" placeholder="输入选项内容"/>'+
+                            '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                            '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
+                            '</li>'+
+                            '<div class="cl"></div>'+
+                            '<li class="ur_item">'+
+                            '<label>选项C<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input maxlength="200" type="text" name="question_answer[2]" placeholder="输入选项内容"/>'+
+                            '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                            '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
+                            '</li>'+
+                            '<div class="cl"></div>'+
+                            '<li class="ur_item">'+
+                            '<label>选项D<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input maxlength="200" type="text" name="question_answer[3]" placeholder="输入选项内容"/>'+
+                            '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                            '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
+                            '</li>'+
+                            '<div class="cl"></div>'+
+                            '<li class="ur_item">'+
+                            '<label>标准答案<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input name="exercise_choice" placeholder="若标准答案为A,B,C，在答案输入框填入ABC即可" type="text">'+
+                            '</li>'+
+                            '<div class="cl"></div>'+
+                            '</ul>'+
+                            '</div>'+
+                            '<div class="ur_editor_footer">'+
+                            '<a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="add_poll_question($(this));">'+
+                            '保存'+
+                            '</a>'+
+                            '<a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">'+
+                            '<%= l(:button_cancel)%>'+
+                            '</a>'+
+                            '</div>'+
+                            '<div class="cl"></div>'+
+                            '</div>'+
+                            '<% end%>'
+            );
+        } else {
+            $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html("");
+        }
         $("#poll_questions_title").focus();
     }
 
@@ -186,35 +213,61 @@
     }
 
     function insert_SINGLE(quest_type,quest_num,quest_id){
-        $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html(
-                        '<%= form_for(ExerciseQuestion.new,
-             :html => { :multipart => true },
-             :url => {:controller => 'exercise',
-                      :action => 'create_exercise_question',
-                      :course_id => @course.id
-             },:remote=>true ) do |f|%>'+
-                        '<div class="ur_editor text ">'+
-                        '<div class="ur_editor_title">'+
-                        '<label for="ur_question_title">问题：&nbsp;&nbsp;</label>'+
-                        '<input type="hidden" name="quest_id" value="'+quest_id+'"/>'+
-                        '<input type="hidden" name="quest_num" value="'+quest_num+'"/>'+
-                        '<input type="hidden" name="question_type" value="3"/>'+
-                        '<input maxlength="250" id="poll_questions_title" class="ur_question_title" contenteditable="true" type="text" name="poll_questions_title"  placeholder="请输入单行主观标题"/>'+
-                        '<input type="checkbox" name="is_necessary" value="true" checked/>'+
-                        '<label for="ur_question_require">必答</label>'+
-                        '</div>'+
-                        '<div class="ur_editor_footer">'+
-                        '<a class="btn_submit c_white" data-button="ok" onclick="add_poll_question($(this));">'+
-                        '<%= l(:label_button_ok)%>'+
-                        '</a>'+
-                        '<a class="btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">'+
-                        '<%= l(:button_cancel)%>'+
-                        '</a>'+
-                        '</div>'+
-                        '<div class="cl"></div>'+
-                        '</div>'+
-                        '<% end%>'
-        );
+        if($.trim($("#insert_new_poll_question_"+quest_type+"_"+quest_id).html()) == "") {
+            $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html(
+                            '<%= form_for(ExerciseQuestion.new,:html=>{:multipart=>true},:url=>{:controller=> 'exercise',:action=>'create_exercise_question',:course_id=>@course.id},:remote=>true) do |f|%>'+
+                            ' <div class="questionContainer" style="width: 680px;"> '+
+                            '<div class="ur_editor_title"> '+
+                            '<label>问题：&nbsp;&nbsp;</label>'+
+                            '<input type="hidden" name="quest_id" value="'+quest_id+'"/>'+
+                            '<input type="hidden" name="quest_num" value="'+quest_num+'"/>'+
+                            '<input type="hidden" name="question_type" value="3"/>'+
+                            '<input name="question_title" id="poll_questions_title" class="questionTitle" placeholder="请输入填空题的内容（注意：目前填空题暂时仅支持一个空）" type="text"/>'+
+                            '</div>'+
+                            '<div class="ur_editor_content">'+
+                            '<ul>'+
+                            '<li class="ur_item">'+
+                            '<label>分数<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input type="text" name="question_score" style="width:40px; text-align:center; padding-left:0px;"/>分'+
+                            '</li>'+
+                            '<li class="ur_item">'+
+                            '<label>候选答案一<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input type="text" name="exercise_choice[0]" placeholder="请输入候选答案一"/>'+
+                            '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                            '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
+                            '</li>'+
+                            '<div class="cl"></div>'+
+                            '<li class="ur_item">'+
+                            '<label>候选答案二<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input type="text" name="exercise_choice[1]" placeholder="请输入候选答案二（选填）"/>'+
+                            '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                            '<a class="icon_remove"  title="删除" onclick="remove_single_answer($(this))"></a>'+
+                            '</li>'+
+                            '<div class="cl"></div>'+
+                            '<li class="ur_item">'+
+                            '<label>候选答案三<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                            '<input maxlength="200" type="text" name="exercise_choice[2]" placeholder="请输入候选答案三（选填）"/>'+
+                            '<a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>'+
+                            '<a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>'+
+                            '</li>'+
+                            '<div class="cl"></div>'+
+                            '</ul>'+
+                            '</div>'+
+                            '<div class="ur_editor_footer">'+
+                            '<a class="btn btn_dark btn_submit c_white" data-button="ok" onclick="add_poll_question($(this));">'+
+                            '保存'+
+                            '</a>'+
+                            '<a class="btn btn_light btn_cancel" data-button="cancel" onclick="$(this).parent().parent().parent().remove();">'+
+                            '<%= l(:button_cancel)%>'+
+                            '</a>'+
+                            '</div>'+
+                            '<div class="cl"></div>'+
+                            '</div>'+
+                            '<% end%>'
+            );
+        } else {
+            $("#insert_new_poll_question_"+quest_type+"_"+quest_id).html("");
+        }
         $("#poll_questions_title").focus();
     }
 
@@ -247,13 +300,13 @@
     function add_poll_question(doc)
     {
         var title = $.trim($("#poll_questions_title").val());
-        if(title.length == 0){alert("标题不能为空");}else{doc.parent().parent().parent().submit();}
+        if(title.length == 0){alert("题目标题不能为空");}else{doc.parent().parent().parent().submit();}
     }
     //修改标题时确定按钮
     function edit_poll_question(doc,id)
     {
         var title = $.trim($("#poll_questions_title_" + id).val());
-        if(title.length == 0){alert("标题不能为空");}else{doc.parent().parent().parent().submit();}
+        if(title.length == 0){alert("题目标题不能为空");}else{doc.parent().parent().parent().submit();}
     }
 
     //问卷头
diff --git a/app/views/exercise/_new_single.html.erb b/app/views/exercise/_new_single.html.erb
index 4d9baf729..a8c6f57ea 100644
--- a/app/views/exercise/_new_single.html.erb
+++ b/app/views/exercise/_new_single.html.erb
@@ -20,17 +20,23 @@
       <li class="ur_item">
         <label>候选答案一<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
         <input  name="exercise_choice[0]" placeholder="请输入候选答案一" type="text">
-        <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a> <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a> </li>
+        <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
+        <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+      </li>
       <div class="cl"></div>
       <li class="ur_item">
         <label>候选答案二<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
         <input  name="exercise_choice[1]" placeholder="请输入候选答案二（选填）" type="text">
-        <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a> <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a> </li>
+        <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
+        <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+      </li>
       <div class="cl"></div>
       <li class="ur_item">
         <label>候选答案三<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
         <input  name="exercise_choice[2]" placeholder="请输入候选答案三（选填）" type="text">
-        <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a> <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a> </li>
+        <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
+        <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>
+      </li>
       <div class="cl"></div>
     </ul>
   </div>
diff --git a/app/views/exercise/_show_MC.html.erb b/app/views/exercise/_show_MC.html.erb
index d44652603..241cc6009 100644
--- a/app/views/exercise/_show_MC.html.erb
+++ b/app/views/exercise/_show_MC.html.erb
@@ -7,7 +7,7 @@
   <%= link_to("", delete_exercise_question_exercise_index_path(:exercise_question => exercise_question.id),
               method: :delete, :confirm => l(:text_are_you_sure), :remote => true, :class => "ur_icon_de")  %>
   <a class="ur_icon_edit" title="编辑" onclick="pollQuestionEdit(<%= exercise_question.id%>);"></a>
-  <a class='ur_icon_add' title='向下插入' id="add_mc_<%=exercise_question.id%>" onclick="chooseQuestionType('mc',<%=exercise_question.id%>);"></a>
+  <a class='ur_icon_add' title='向下插入' id="add_mc_<%=exercise_question.id%>" onclick="dismiss('mc',<%=exercise_question.id%>);insert_MC('mc',<%=exercise_question.question_number%>,<%=exercise_question.id%>);"></a>
   <div class="cl"></div>
   <div class="ur_inputs">
     <table class="ur_table"  style="width:675px;">
@@ -28,11 +28,4 @@
 </div><!--单选题显示 end-->
 <!-- 新增问题 -->
 <div id="insert_new_poll_question_mc_<%=exercise_question.id%>">
-</div>
-<div id="div_mc_<%=exercise_question.id%>" style="width: 50px;border: 1px solid #cbcbcb; display:none;position: absolute;padding: 5px;background: white">
-  <ul>
-    <!--<li><a href="javascript:void(0);" onclick=" dismiss('mc',<%#=exercise_question.id%>);insert_MC('mc',<%#=exercise_question.question_number%>,<%#=exercise_question.id%>);">单选</a></li>
-    <li><a href="javascript:void(0);" onclick=" dismiss('mc',<%#=poll_question.id%>);insert_MCQ('mc',<%#=poll_question.question_number%>,<%#=poll_question.id%>);">多选</a></li>
-    <li><a href="javascript:void(0);" onclick=" dismiss('mc',<%#=poll_question.id%>);insert_SINGLE('mc',<%#=poll_question.question_number%>,<%#=poll_question.id%>);">单行主观</a></li>-->
-  </ul>
 </div>
\ No newline at end of file
diff --git a/app/views/exercise/_show_MCQ.html.erb b/app/views/exercise/_show_MCQ.html.erb
index db9fa2dd4..7dd52b30a 100644
--- a/app/views/exercise/_show_MCQ.html.erb
+++ b/app/views/exercise/_show_MCQ.html.erb
@@ -6,7 +6,7 @@
   <%= link_to("", delete_exercise_question_exercise_index_path(:exercise_question => exercise_question.id),
               method: :delete, :confirm => l(:text_are_you_sure), :remote => true, :class => "ur_icon_de")  %>
   <a class="ur_icon_edit" title="编辑" onclick="pollQuestionEdit(<%= exercise_question.id%>);"></a>
-  <a class='ur_icon_add' title='向下插入' id="add_mcq_<%=exercise_question.id%>" onclick="chooseQuestionType('mcq',<%=exercise_question.id%>);"></a>
+  <a class='ur_icon_add' title='向下插入' id="add_mcq_<%=exercise_question.id%>" onclick="dismiss('mcq',<%=exercise_question.id%>);insert_MCQ('mcq',<%=exercise_question.question_number%>,<%=exercise_question.id%>);"></a>
   <div class="cl"></div>
   <div class="ur_inputs">
     <table class="ur_table" style="width:675px;">
diff --git a/app/views/exercise/_show_single.html.erb b/app/views/exercise/_show_single.html.erb
index 591848d76..452a14bc4 100644
--- a/app/views/exercise/_show_single.html.erb
+++ b/app/views/exercise/_show_single.html.erb
@@ -5,7 +5,7 @@
   <%= link_to("", delete_exercise_question_exercise_index_path(:exercise_question => exercise_question.id),
               method: :delete, :confirm => l(:text_are_you_sure), :remote => true, :class => "ur_icon_de")  %>
   <a class="ur_icon_edit" title="编辑" onclick="pollQuestionEdit(<%= exercise_question.id%>);"></a>
-  <a class='ur_icon_add' title='向下插入' id="add_single_<%=exercise_question.id%>" onclick="chooseQuestionType('single',<%=exercise_question.id%>);"></a>
+  <a class='ur_icon_add' title='向下插入' id="add_single_<%=exercise_question.id%>" onclick="dismiss('single',<%=exercise_question.id%>);insert_SINGLE('single',<%=exercise_question.question_number%>,<%=exercise_question.id%>);"></a>
   <div class="cl"></div>
   <div>
     <% exercise_question.exercise_standard_answers.reorder("created_at").each_with_index do |exercise_choice,index| %>
@@ -15,11 +15,4 @@
 </div>
 <!-- 新增问题 -->
 <div id="insert_new_poll_question_single_<%=exercise_question.id%>">
-</div>
-<div id="div_single_<%=exercise_question.id%>" style="width: 50px;border: 1px solid #cbcbcb; display:none;position: absolute;padding: 5px;background: white">
-  <ul>
-    <!--<li><a href="javascript:void(0);" onclick=" dismiss('single',<%#=poll_question.id%>);insert_MC('single',<%#=poll_question.question_number%>,<%#=poll_question.id%>);">单选</a></li>
-    <li><a href="javascript:void(0);" onclick=" dismiss('single',<%#=poll_question.id%>);insert_MCQ('single',<%#=poll_question.question_number%>,<%#=poll_question.id%>);">多选</a></li>
-    <li><a href="javascript:void(0);" onclick=" dismiss('single',<%#=poll_question.id%>);insert_SINGLE('single',<%#=poll_question.question_number%>,<%#=poll_question.id%>);">单行主观</a></li>-->
-  </ul>
 </div>
\ No newline at end of file