49

Bb t x

xɚ xɚ M{əEhɪ | { |

xəʚ Eʮ^n +ʚ

{ʮ q ^n

{ʺɪʚ < i ^n xz

xɺxM Eέi cn | 1 |

=M֮ʚ Mn xz

E {nEʚ xMn

ɮE +ɳʚ Mn +

iɯh ʽ MMn | 2 |

Eixɴ M bn xz

ֲ EbM x xbn

BʮM `D bn

S Mʴ` xMMbn | 3 |