????2???21????????? ????????????,?2????????20??,???????,????,???6????,?4?????????????2?????

???,?????????,??????????????????200??????????????????

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

??,?,?????,?????????? ???????:????????????????????????? ??�??????�

?? ?? ?????6???????????

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

2??????

3??????????

4???????

5??????????

????2???21????????? ????????????,?2????????20??,???????,????,???6????,?4?????????????2?????

???,?????????,??????????????????200??????????????????

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

??,?,?????,?????????? ???????:?????????????????????????