请将下列三种化合物发生亲核加成的反应活性由高到低排列
举一反三
- 下列化合物能发生碘仿反应的是<br><img src="https://qn-next.xuetangx.com/15690388611402.png" alt="新的图片" width="633" height="66" style="width: 633px; height: 66px;"/>
- 比较下列化合物的在水中的溶解度大小<br><img alt="" src="https://qn-next.xuetangx.com/15668866032999.png" style="width: 1565px; height: 311px;"/>
- 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;"/>
- 下图是北宋汴梁的城市用地性质示意图,看图并回答问题。代表皇家用地的是_____.<br><img alt="" src="https://qn-next.xuetangx.com/15668876682396.png" style="width: 994px; height: 674px;"/>
- 根据我国现行的住宅设计规范，双排布置设备的厨房其两排设备之间的净距不应小于_____m。<br><img alt="" src="https://qn-next.xuetangx.com/15668881672023.png" style="width: 160px; height: 310px;"/>