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

??

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