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

2?????????

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

4???????

5????????

??????6?17??(????????)???,6??17??????????????20???,??????????????,??????

?????????????????6??17?????,6??17??????????????20??,?????,??????????????85?,?17??28?,18??????????28????,19??????23????,20????????????6????

?????????????,??????????????,????,?????????????????????????,????????????????????????????,?????????????????????????

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