anchor.diff:      <option value="primary_school">小学(1354)</option>
       <%
           }
  -        if ("junior_school".equals(request.getAttribute("words_type"))) {
  +        if ("junior_school".equalsIgnoreCase((String)request.getAttribute("words_type"))) {
       %>
       <option value="junior_school" selected="selected">初中(3359)</option>
       <%
  
positive.code:     <option value="SAT">SAT(108)</option>
      <%
          }
          if ("GMAT".equals(request.getAttribute("words_type"))) {
      %>
      <option value="GMAT" selected="selected">GMAT(3328)</option>
      <%
  
negative.code:     <option value="junior_school">初中(3359)</option>
      <%
          }
          if ("senior_school".equalsIgnoreCase((String)request.getAttribute("words_type"))) {
      %>
      <option value="senior_school" selected="selected">高中(5060)</option>
      <%
  