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

2????????

3???????

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

5??????????150???

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

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

“????,‘????????’????,??????????????????????????????????????????????????????????????”????????????????,“‘?????????’?????,????,????”

????,????“??”???“??????”???

???????,????“????????”????????????

??????????,?????????????,????30?????????,??????????40?????????????,????????,?????????????,??????,?,??“??????????”?

????,??,???,???2/3????

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

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

??,??????

?????,????,???????????????15????30??,????????????,??????????????,?????????????,??????????,????????(??????????????????????? ??????????? ??????)

??:??????????? ?????:??????????