统一在线测验新建单选选项时，样式出现的bug

app/views/exercise/_edit_MC.html.erb

@@ -8,7 +8,7 @@
             $("#poll_question_standard_answer_<%=exercise_question.id %>").val("<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s)%>")
             $("#poll_answers_<%=exercise_question.id%>").html("<% exercise_question.exercise_choices.reorder("choice_position").each_with_index do |exercise_choice,index| %>" +
                     "<li class='ur_item'>" +
-                    "<label name='select_items' class='w56'>选项<%=convert_to_char (index+1).to_s %><span class='ur_index'></span>：&nbsp;&nbsp;&nbsp;</label>" +
+                    "<label name='select_items' class='w60'>选项<%=convert_to_char (index+1).to_s %><span class='ur_index'></span>：&nbsp;&nbsp;&nbsp;</label>" +
                     "<input maxlength='200' type='text' name='question_answer[<%=exercise_choice.id %>]' placeholder='输入选项内容' value='<%=exercise_choice.choice_text %>'/>" +
                     "<a class='icon_add' title='向下插入选项' onclick='add_single_answer($(this));'></a>" +
                     "<a class='icon_remove'  title='删除' onclick='remove_single_answer($(this))'></a>" +

app/views/exercise/_edit_MCQ.html.erb

@@ -8,7 +8,7 @@
             $("#poll_question_standard_answer_<%=exercise_question.id %>").val("<%= convert_to_char(exercise_question.exercise_standard_answers.first.exercise_choice_id.to_s)%>")
             $("#poll_answers_<%=exercise_question.id%>").html("<% exercise_question.exercise_choices.reorder("choice_position").each_with_index do |exercise_choice,index| %>" +
                     "<li class='ur_item'>" +
-                    "<label name='select_items' class='w56'>选项<%=convert_to_char (index+1).to_s %><span class='ur_index'></span>：&nbsp;&nbsp;&nbsp;</label>" +
+                    "<label name='select_items' class='w60'>选项<%=convert_to_char (index+1).to_s %><span class='ur_index'></span>：&nbsp;&nbsp;&nbsp;</label>" +
                     "<input maxlength='200' type='text' name='question_answer[<%= exercise_choice.id %>]' placeholder='输入选项内容' value='<%=exercise_choice.choice_text %>'/>" +
                     "<a class='icon_add' title='向下插入选项' onclick='add_single_answer($(this));'></a>" +
                     "<a class='icon_remove'  title='删除' onclick='remove_single_answer($(this))'></a>" +
@@ -34,7 +34,7 @@
           <div id="poll_answers_<%=exercise_question.id%>">
             <% exercise_question.exercise_choices.reorder("choice_position").each_with_index do |exercise_choice,index| %>
                 <li class="ur_item">
-                  <label name='select_items' class='w56'>选项<%=convert_to_char (index+1).to_s %><span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+                  <label name='select_items' class='w60'>选项<%=convert_to_char (index+1).to_s %><span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
                   <input maxlength="200" type='text' name='question_answer[<%= exercise_choice.id %>]' placeholder='输入选项内容' value="<%=exercise_choice.choice_text %>">
                   <a class="icon_add" title="向下插入选项" onclick="add_single_answer($(this));"></a>
                   <a class="icon_remove" title="删除" onclick="remove_single_answer($(this))"></a>

app/views/exercise/_exercise_form.html.erb

@@ -171,7 +171,7 @@
     //单选题
     function add_single_answer(doc)
     {
-        var li = doc.parent().after("<li class='ur_item'><label name='select_items' class='w56'>选项&nbsp;<span class='ur_index'></span>：&nbsp;&nbsp;&nbsp;</label><input maxlength='200' type='text' name='question_answer["+new Date().getTime()+"]' placeholder='输入选项内容'/>" +
+        var li = doc.parent().after("<li class='ur_item'><label name='select_items' class='w60'>选项&nbsp;<span class='ur_index'></span>：&nbsp;&nbsp;&nbsp;</label><input maxlength='200' type='text' name='question_answer["+new Date().getTime()+"]' 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>");
         var select_items =$("label[name='select_items']",li.parent());

app/views/exercise/_new_MCQ.html.erb

@@ -18,28 +18,28 @@
       <div class="cl"></div>
       <div>
           <li class="ur_item">
-            <label name='select_items' class='w56'>选项A<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <label name='select_items' class='w60'>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 name='select_items' class='w56'>选项B<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <label name='select_items' class='w60'>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 name='select_items' class='w56'>选项C<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <label name='select_items' class='w60'>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 name='select_items' class='w56'>选项D<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>
+            <label name='select_items' class='w60'>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>

app/views/exercise/_show_MCQ.html.erb

@@ -54,28 +54,28 @@
                                 '<input value="<%= score %>" id="question_score" type="text" name="question_score" style="width:40px; text-align:center; padding-left:0px;"/>分'+
                                 '</li><div>'+
                                 '<li class="ur_item">'+
-                                '<label name="select_items" class="w56">选项A<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<label name="select_items" class="w60">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 name="select_items" class="w56">选项B<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<label name="select_items" class="w60">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 name="select_items" class="w56">选项C<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<label name="select_items" class="w60">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 name="select_items" class="w56">选项D<span class="ur_index"></span>：&nbsp;&nbsp;&nbsp;</label>'+
+                                '<label name="select_items" class="w60">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>'+