Chrome，
QQ浏览器
.
![[微课教学]1.1《观察物体（三）-还原立体图形》（人教版）五年级下册](http://imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F04d57ce49a263943e40799eeed61b75df5e235b0.jpg%40672w_378h_1c_%21web-search-common-cover)
![人教版小学数学三年级下册2023最新人教版版数学动画教学课件包含PDF课件习题【全199集]](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F21e3eef29d7b32a75d746c857cb9ba2000bf5724.jpg%40672w_378h_1c_%21web-search-common-cover)
.