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

2???????50??

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

4???????

5?100??????

??,???????,??????,???????????????????????,??????????,????????;????,????????????????????

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

?????????????,????????????????????;??????????????,?????????

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

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