???????? ????10??????????

??????2???????8?(? ??)????????????,??8???

??8?8?????50?:???,???8????9???????,???????????????5????????????10??,???????????

?5??8?9???????????,????????????

?8???,2?????8???????~9????,?????,??8~11?,?12~15?;??17~20?,?????????22~25??

????:?8??5~6???????????7~8???,???;8????~9??????????????5~6????????????7??,?????;10?????????????????????5????????????6~7??????,???

???,?????????????8??????10???IV?(??):???????,??????????????????????????????????????????????4.5~5.8???????????????3.5~4.5???????????2.0~2.5????????????????????????????2.0~3.4???????????????,????????????????????,??(????) ??????????????:?????????