Chrome，
QQ浏览器
-
-
-
-
-
-
-
-
播放：25 时间：2024-06-19简介： -
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
![[初三数学04]二次函数与一元二次方程（不等式）](//imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F68cca5e1665f76f8c37bae31d10dcaf1dda8af56.jpg%40672w_378h_1c_%21web-search-common-cover)
-
-
-
-
-
-
-
-
-
-
-
-
![[初三数学04]二次函数与一元二次方程（不等式）](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F68cca5e1665f76f8c37bae31d10dcaf1dda8af56.jpg%40672w_378h_1c_%21web-search-common-cover)
.