Chrome，
QQ浏览器
.
![[2.12].八年级科学《人体生命活动的神经调节》第一课时](http://imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2Fc391c2c2657784d18b73949f1a9a8cd6b36683a3.jpg%40672w_378h_1c_%21web-search-common-cover)
.