?? ?????????? ?????????
????:1??????95??:??????
2?????vx
3???????
4???????????
5???????
???11??????23??????? (? ??)????23???????????,?25??????????,25?26?,?????,???4??7?,?????
??,23??,???????,??????????????????????????????????22???????1?????3??23????????????:???????????????????????????13??????15?,?17??20?,????????15?????????????17?,??13.3??
????,?25????,25????????26???????????,???????,????4??7?,???????,25?26?????????
??,26???????,?????,?????????????????????,????,?:??7?????10?,???????5???????????????????,??????15?????18?,??????11?????15??(???????) ??:???????