<div class="degree-select">
<button id="degree-all-btn" class=
"btn btn-default simulation-pull-down-list-control degree-list"
type="button"> <span class="degree-list"
id="mentor-degree">请选择企业导师学位</span> <p class="caret degree-list"></p>
</button>
<div class="simulation-pull-down-list-wrapper" id="degree-list-wrapper">
<ul class="list-group"></ul> </div> </div>