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

2?????????????

3??????????

4?????vx

5???????

????????12??4???? (?? ?????)“?,??????????????,????????????????????????,?????????????????????????????????????”4?????,??????????,“????+???????”“????+????????”“?+??”??,???????????,??

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

???????????,???????????“????”??????????????????,?????????????????,????,????????,?“??”,????????????????????????????????,???????????????????????????????1286????,????????????????

???,????94??????????????????????????????????42????????6????????????39????????????????58????????????????39??????????????????????,??????“??”“???”“???”“??”????????

??????????????,???????????,???????“????????”???????????,??260????????,??????,???“?????????????????????????????????????”????????????

???,?????????????,???????????????????????,?16???A?????3?????????????10?????3????????????????3?????????????????1??,?????????????????????????????,????????????????,??????“??????????????????????????????????”????

??12??????,??90%?,?????90%??,??100%,????,?????(??)

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