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

????:??????:????92?95?98?

????????????????????1????3???? (???? ??????????????????????? ??????)????????????????????3?????????

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

????15??,???????????????????

???10????????????,??10????????“???”??????,????????,????“?????”???????

??,?6.2????????,???,?????????????????550???????????,???????????????

???????,?????????,???????????????????????????,??170??????????????,???

???????,???,????????????????????????????????,??????????????160?????????????,????????????????????5?,????6??,??????10???,????20%?(?????) ???:??????