视频地址:https://video.cache.bdschool.cn/vd/bbf642f0fbfe71c63de92917a482e72c.mp4
附件:0528初二数学(北京版)-菱形的判定-1教案.doc
附件:0528初二数学(北京版)-菱形的判定-2PPT课件.pptx
附件:0528初二数学(北京版)-菱形的判定-3学习任务单.doc