Category: 17级数学
200611-平方差公式说课-22170640
85 Views8 Comments0 Likes
200528-等差数列前n项和1-22170618
48 Views8 Comments0 Likes
https://v.youku.com/v_show/id_XNDY5MDA0MTk2OA==.html 互评量表
200528-等差数列前n项和1-06170332
110 Views8 Comments0 Likes
200514-函数奇偶性-22170637
47 Views8 Comments3 Likes
