616* +M B ɴɳ Mh * Mhxvɨx xɮɪh * +ɨS {ʮ ʴY{x * Ʀɳ nx +{ʱɪ **1** **w*** ɽ =nS E] +ɨʺ E Eǧɹ] * i֨S SEʴɱ ] * E ]] xʨi **w** Vɱ {Mɱ Vxɺ * ƺɮS +nh nɺ * x E Ev bʴɺ * nf{ɶ ɽ vɱ **2** l i xɪ +` Eƽ * ʴɺɴ i Ih BE xɽ * {b +hE |ɴɽ * ʽi i Eƽ n S x **3** Vʴi Sɱ ʴɪM * ˽bi |ɴɺ =M * Eƽ v {b M * Eʱɪ M ibib **4** Z S Vɱ j * ES {j nɮ ES ʨj * Eɺɪ Piɱ {ɺɰ * + VMnMְ iE h **5**


Oliұ MS +M Oliұ {fS +M +MS +vɪ