4279* +vɨS Sk +Eɮ x * ={n h iɪ E **1** **w*** {{ɪS x x E +Sɮ * ʴvɴ Mɮ l E **w** +vɨS Sk nζSk BEx * ƪ h x E Eɪ **2** MvǤɺ n SnxS =] * Eɮ ɱ] ES **3** {iɴSE Mi =nb * {ʮ i {ɹb iS x **4** iE h i +ʴE Mi * =M S Sk h **5**


Oliұ MS +M Oliұ {fS +M +MS +vɪ