Category: 18级数师
200529-等差数列前n项和-06180507
62 Views6 Comments0 Likes
200529-等差数列的前n项和1-06180535
61 Views9 Comments0 Likes
200612-等差数列的前n项和说课-22170820
60 Views7 Comments0 Likes
200529-平方差1-22171907
60 Views10 Comments0 Likes
200605-平方差公式-06180519
60 Views8 Comments0 Likes
https://v.youku.com/v_show/id_XNDcwNDI2NjAyOA==.html 互评量表
