?? ????!???????“????????????”
????:1?51?????:??????
2?????????
3????????
4????????????
5???????????
11??22?,?,???1000????“??”???????,???????????????????,??????“???????”???????????????????“???????”????
????????,???20??????????,620??,????300????200??600??????????????????,???????100?????????????16?67??????????????????????15????,???????????????
(??? ??????? ????)
???????:?????????????