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

2??????

3????K???

4???????????

5????????????

?12???20????????? (? ???)?????????20??????,??????????????????,?29??,??????1.81????;987??,?1.8????

?????,??????????????,???“????????????????????????????”?,?????,??????(???????????????)??????????,????????“????”??????

12??????????????20??????????????,??,???????? ???

????“15??????????????”????????,??3????????,????“1+1+N”????,??“1”????????+“1”??????????+“N”??????,???“????”,???????????????“?+????????????????”????????,???

??????????????,??“?????????”????“????”???????,?????????,???????????????,?“??????????,???????;????,????????;?,????????;?,????????”,??????????????????????????????????

??????????,“??????”???,????(???????????)???????????????????,?,???????????????????????11??3??????,??????212?????????????????????,???715??????,?1002??,???99????????,?288?????????????????,?????????????1797?????(???????)

??????????:???