下列剖面图哪一个是独乐寺观音阁？ <img alt="" src="https://cloud-forum.oss-cn-beijing.aliyuncs.com/newcloud_mobile_forum/images/2019321213846931_653195_0.png/forum_default"/><img alt="" src="https://cloud-forum.oss-cn-beijing.aliyuncs.com/newcloud_mobile_forum/images/2019321213854408_857015_0.png/forum_default"/><img alt="" src="https://cloud-forum.oss-cn-beijing.aliyuncs.com/newcloud_mobile_forum/images/201932121393416_256999_0.png/forum_default" style="width: 1484px; height: 1520px;"/><img alt="" src="https://cloud-forum.oss-cn-beijing.aliyuncs.com/newcloud_mobile_forum/images/2019321213911738_926377_0.png/forum_default" style="width: 1336px; height: 1174px;"/>