Chrome，
QQ浏览器
.
![『获奖』青岛版小学数学六年级上册《2信息窗（可能性的大小）》[孙老师]【市一等奖】优质课_优质课公开课教学视频](http://imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2Fe8e00e6a0a5b904f8a562609d2abf6a995403ba2.jpg%40672w_378h_1c_%21web-search-common-cover)
.