????:1???50????:????300?????

2?????

3?????

4?????????

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

????2????????????????6???? (?????)????????????????6?????????,?????????????,????????????4.36??????????????,???5600?????????????????,??????????????“?”???

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

??????????,??????????,??????3%??????????,??????????????????????????????????????????

????????,?????????????,???,???????????????,?????,?????????,????????????1000?19.4%?(??????????) ???????:???