????:1??????10????:?????????

2???????????

3?????????

4???????

5??????

?2????????????2????????????????? (???? ??????)??????(??????????????)?????2??1?,?????????????????????

?,????????????????????2????????????1?,?????????????,????????????????????

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

??????????????2???1?????,????90%?????????????

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