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

2??????

3???????

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

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

???12???20??? (???????????????? ????????)???20??????????,??????????????????3?,??????????????????“???”??????,????“??????”??????????????????,?“??????????”?????????66??????????,??????????500??(????),?490?(????),????????200?????????

??,????????,??????????;????????????????????????,????????????????????,?????

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

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