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

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

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

4???????

5?????????

??8????9?????? ??????????????,????????????8??????????9????6??????????????????:

??????????8??????????9????8?????????10?8?????,????????????????????????????????????????8?,??????????????,??????????????????????????????????????????10?????????,??11????;????????????????????????????20???????????????,??,???????????????????????????????50???,???80?????

?

?????????

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

1.????????????????,?????;

2.??????????,??????;

3.???????,??????????????????;

4.???????,????,??????;

5.????????????????????????,?????????????????????????????????????

??????:???