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

2????????????????

3??????100???

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

5???????

??????2??12??????????? 2????????????12??????????,??????

?,?????????????????????50????????????????????,??,?????,??????????????,?,?????????,???????????????????????????,????????????,??????,??????????????????????????????????,??????????,????????

????????????,?50????,????????????????????????????????????,??????????,??????,?????????????,?????????????,????????????????????????????

???(??????????) ????:?????????????????