資源下載 - S4

S4 Ch.1 Quadratic Equations in One Unknown (I) 一元二次方程式（一）

S4N01_S

S4N01_S_3ED_F         S4N01_S(3RD numerical)        

S4N01_SC

S4N01_SC_3ED_F         S4N01_SC(3RD numerical)