?? ??????:?????????“????”
????:1???????:????????????
2???qt??????????
3?????
4???????????
5?????
??????12????5??? ????,??12????????4?,???????????????????,???“????”???????
????????????????,?????????,????,“??????”????????,?????????????,??????????????“?????”?
?????????,????????????“?????”?
?????,???3???,????????4???????1??????,???????????????6??4????????????? ????:??????