資源下載 - S2

S2 Ch.1 Rate, Ratio and Proportion 率、比與比例

S2N01_S

S2N01_S_3rd_F         S2N01_S(3RD numerical)        

S2N01_SC

S2N01_SC_3rd_F         S2N01_SC(3RD numerical)        

S2P01

S2P01_S_2ED_W_F         S2P01_SC_2ED_W_F        

S2R01

S2R01_S_2ED_W_F         S2R01_SC_2ED_W_F