???????????????????????????????2?????????21?? (?????? ??????)?????20????,?«??????»???????????????????????????????7????????????????????????,?????????????????????

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

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

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

??????????????????????,????????????????,?????????????????????????????????????????????,??13???????????

???,??????,??1??????????12???97%?

?86??????????????????????????

???????????????2???????????????????????????????1?????,???,???????????25%??,???????????10%?????2?????3??????,???,??????,???????????????30??????2??????10?????,?3???12?????????????????????25%?????(???????) ????????????????????:?????????? “????1000”????

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

????:1?????1000:????????

2????????100?????

3???????????

4???????

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

???????????????????????????????2?????????21?? (?????? ??????)?????20????,?«??????»???????????????????????????????7????????????????????????,?????????????????????

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

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

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

??????????????????????,????????????????,?????????????????????????????????????????????,??13???????????

???,??????,??1??????????12???97%?

?86??????????????????????????

???????????????2???????????????????????????????1?????,???,???????????25%??,???????????10%?????2?????3??????,???,??????,???????????????30??????2??????10?????,?3???12?????????????????????25%?????(???????) ????????????????????:??????????