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

2??????????

3???????vx

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

5???????

?????10???????26??????(???? ?????)“?????????????,????,???????,??”?????????????,?????

???????? ???????????

??,??630?????????,??“??????????”,??????????????????

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

??????????????6????????,????????????????????????????????????,???????????,?????????????,????????,??

?????(????????????)?? ???????????

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

????,??????????????“??????????”????????????????????,???????,????????????????????????????????????,?????????????“????????????????????????1????????”?

??????,??,???????????“??+?”?????????????????????,????????????“??????????+????”?????????,???“?????+???+???”???,?????,???

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

??????????????,??5?????????2.97??????,?????????????????????40.6%,???50%,??????????????(??)

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