275( d )

xɴɺ n Exʮ iɨ{{

hɪɮxɪx | { |

hMxə ɨb n

nxɮIExɪ x Eh | +{ |

{ii{ɴx n cnxnx

ʽiEx n xJɳn

|i{tx n ʽMMiʙ xn

iMbʺ {nxɪ qMɪ | 1 |

=b{ xə n =b{xii

i]i ɮn Ehɤɮnɺi

=^q i^q <^q xb

+ ɪɴɪ ə ɪɴɪ | 2 |

B ɴ B Ehɴ

Eɺ ɳn Bxə qEhɪM

ɺE ɪxx in {֮nʴ`

p ɺxɪ Ehhɪ | 3 |