document.write("<option value='' selected>--不限--</option>");document.write("<option value='86627'>操作题</option>");document.write("<option value='86628'>常规题</option>");document.write("<option value='86629'>开放题</option>");document.write("<option value='86630'>探索题</option>");document.write("<option value='86631'>应用题</option>");document.write("<option value='86632'>阅读题</option>");