????:1???????????????:???????

2??????

3??????????

4???????

5?????

????7?????????????15?????????????? (?????????????????? ?? ?????????)????15??????????(??????????????????????????“???”)????????????????????,“??????????????????”??,??,??????????????1000???????

“???????????”????,???????????

“??”???????????????????????

??,“????????”??100????100?????,?????????????????????????????????????,??,???

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

?????“??”???????? ??

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

??,???????????????“??”????????????????,??,???,??????(?????????????)

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