339* +ES x i E E * Eƽ +iɮ Pxl n֮ * =x MơV nֹ] E S * Eƽ V +hɱ +Pb E{֮ **1** **w*** M jV] Jɪ B i * n<DZ E xn ] Pxl * x =iʴɳ Vɱn֮ {l * ɽ x E |h Z Eb +i **w** Eɪ nֹ] +Sɮh i E * il i i EhS Mұ * M<Ǵi {ix{ְ ʴPb * x E Si Sɮh +iɮ **2** xb +ɶ MEiɺx * vb Pxl {`M ih * =Pɱ +Y ɴ Eɪ Vh * nJx x] P=x +ɱ x **3** xɽ ڳ ɮM M +hE * BEʴh xɨ PxlS ɪ * ={] {Iɪ BE n=x {ɪ * =nEfɨv il Sɱ Eɪ **4** VxES xnx n&J Mx l * SE EMh i {ɮ ** ƨJ jV] κU κU E * P< iEɺɨ ɨ E{֮ **5**


Oliұ MS +M Oliұ {fS +M +MS +vɪ