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

2?????????

3????????

4?????600?????

5??????

?????1?????7?????????????? (?????????????????? ??)1?7???,??6.8?????????????,???????????????????????????????????????????????????????????????????,???????????

???,????????????,?,???????????,????????????????,??????????????????,????????

?,????????10?????1?,10?20?1????????????,20?????????????50?4??????4???????????????1?????7?10???????????43???????,?????????????

??????????????????????????,?????????,??(??) ??????????:???????????