220414-元素周期律复习课-08190212

Added by 08190212 4 年 ago

89 Views0 Comments0 Likes

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

220609-元素化合物说课-08190228

Added by 08190227 4 年 ago

54 Views0 Comments0 Likes

230306-大气的受热过程-10200145

Added by 10200145 3 年 ago

78 Views0 Comments0 Likes

230315-大气受热过程说课-10200512

Added by 10200512 3 年 ago

133 Views0 Comments0 Likes

20230329-城镇化-10200442

Added by 10200442 3 年 ago

79 Views0 Comments0 Likes