Chrome，
QQ浏览器
-
-
-
-
-
播放：0 时间：2025-11-27简介： -
-
-
播放：3 时间：2025-11-20简介：
-
![李永乐 高中物理-选择性必修[全集]](//imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F28b84558048eb57dffaaf1bc801452487eb5e51c.png%40672w_378h_1c_%21web-search-common-cover)
-
-
-
-
-
-
-
-
-
-
![[高中物理]这可能是你刷到关于动量守恒，最透彻好懂的视频！选择性必修一动量守恒定律合集](//imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F5e9606b18e5e927a28253f4df3ae1596c7da8c85.jpg%40672w_378h_1c_%21web-search-common-cover)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
![李永乐 高中物理-选择性必修[全集]](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F28b84558048eb57dffaaf1bc801452487eb5e51c.png%40672w_378h_1c_%21web-search-common-cover)
![[高中物理]这可能是你刷到关于动量守恒，最透彻好懂的视频！选择性必修一动量守恒定律合集](http://imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F5e9606b18e5e927a28253f4df3ae1596c7da8c85.jpg%40672w_378h_1c_%21web-search-common-cover)
.