211010-二次函数的概念-212021086

Added by 212021086 4 年 ago

73 Views0 Comments0 Likes

211010-对数的概念-212040013

Added by 212040013 4 年 ago

82 Views0 Comments0 Likes

211010-三角形全等的判定-212021122

Added by 212021122 4 年 ago

44 Views0 Comments0 Likes

211010-三角函数的概念-212021100

Added by 212021100 4 年 ago

29 Views0 Comments0 Likes

211010-任意角的三角函数-212021094

Added by 212021094 4 年 ago

47 Views0 Comments0 Likes

20211010-线段垂直平分线的性质-212021116

Added by 212021116 4 年 ago

45 Views0 Comments0 Likes

http://m.youku.com/v_show/id_XNTgxMjE1NTczNg==.html