7?2?????????????????????????????,????,?????(????)????????????????????????????? ? ????? 7?????2?,???????????,???????????(????)????????????????????????????? ????? ? 7?2?,???,???????? ??? ? 7?????2????,???????????,??????(?)????????????????????????????? ????? ????? 7?????????????????????????????2?,???????????,??????(???)? ????? ????? ??????:??? ??“?????????”????

?? ???????????:????

????:1??????????:????????????

2??????

3????????

4????????vx

5?????ktv

7?2?????????????????????????????,????,?????(????)????????????????????????????? ? ????? 7?????2?,???????????,???????????(????)????????????????????????????? ????? ? 7?2?,???,???????? ??? ? 7?????2????,???????????,??????(?)????????????????????????????? ????? ????? 7?????????????????????????????2?,???????????,??????(???)? ????? ????? ??????:???