Chrome，
QQ浏览器
.
![[高一历史]第一单元第一课中华文明的起源与早期国家 石器时代和早期国家的生产](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2Fd22af14c2aa33649ccc456e1cfd07e25cef5ab4f.jpg%40672w_378h_1c_%21web-search-common-cover)
![[一轮复习]高中生讲课：中华文明起源与早期国家](http://imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2F5c074a6282d7ee96ecab8bad114d22067afa5235.jpg%40672w_378h_1c_%21web-search-common-cover)
.