Chrome，
QQ浏览器
.
![[高中物理]没错！功和功率真的超好懂！机械能守恒定律启动！](http://imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F9bee69289e4be2ef242500496cc0d2740945a67a.jpg%40672w_378h_1c_%21web-search-common-cover)
![[高中物理]带你吃透机械能守恒！所有考点！零基础保姆级教学](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2Ffc3d41699cbf02c1ce8080400864a46115261a86.jpg%40672w_378h_1c_%21web-search-common-cover)
.