<ul class="list-group">

                    <li class="list-group-item">

                        <div class="row">

                            <div class="col-xs-6">论文编号</div>

                            <div class="col-xs-6 text-right">0134</div>

                        </div>

                    </li>

                    <li class="list-group-item">

                        <div class="row">

                            <div class="col-xs-6">论文编号</div>

                            <div class="col-xs-6 text-right">0134</div>

                        </div>

                    </li>

                    <li class="list-group-item">

                        <div class="row">

                            <div class="col-xs-6 lineHeight34">论文编号</div>

                            <div class="col-xs-6 text-right">

                                <button type="button" class="btn btn-primary">修改</button>

                                <button type="button" class="btn btn-primary">预览</button>

                            </div>

                        </div>

                    </li>

                </ul>

    .lineHeight34{

        line-height:34px;

    }