Chrome，
QQ浏览器
.
![[九年级物理]-18.3电能的输送 微课](http://imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2Fae9ecdeaea4e40b188f02e6f924d6750d157b681.jpg%40672w_378h_1c_%21web-search-common-cover)
![[初中物理]更新！进来涨分！初三新教材第十三章 第3节内能](http://imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2F6197ee1adfe66ff1f95faae39c4acf18dc5d4041.jpg%40672w_378h_1c_%21web-search-common-cover)
.