??
???2??????19???(??)????,???????????????????????????????????????2?18??,?,??????25%????????????????????????????,????????4???????????????????2??????????
????????,????????????????,?????,???????????,???10%????,?????????????,???????????,??????????????????25%??????????????
?????,??18?,4??25%????,?????
?,???,???????“???”?????????????“?????????????”,???
?????????,???????????,???19???(????)
??????:???????????
????????????????!????25%???????????????????