220609-元素化合物说课-08190239

Added by 08190227 2 年 ago

23 Views0 Comments0 Likes

220609-元素化合物说课-08190247

Added by 08190227 2 年 ago

15 Views0 Comments0 Likes

220602-元素化合物说课-08190227

Added by 08190227 2 年 ago

9 Views1 Comments0 Likes

220414-元素周期律复习课-08190212

Added by 08190212 2 年 ago

40 Views0 Comments0 Likes

https://v.youku.com/v_show/id_XNTg3NjA5MDMxNg==.html

220526-概念原理说课-08190239

Added by 08190227 2 年 ago

59 Views0 Comments0 Likes

220526-概念原理说课-08190247

Added by 08190227 2 年 ago

42 Views0 Comments0 Likes

220526-概念原理说课-08190237

Added by 08190227 2 年 ago

35 Views0 Comments0 Likes